Best Kale Stuffing Recipes

SOURDOUGH STUFFING WITH KALE AND DATES

Steps:

• Heat oven to 400 degrees. Cut the crust off the bread and tear remaining loaf into 1-inch croutons. Place torn bread on a rimmed baking sheet and drizzle with 4 tablespoons olive oil, squeezing and tossing bread with your hands to help it absorb the oil. Transfer to oven and toast, tossing once or twice, until croutons are golden brown and crispy on the outside but still a little soft and tender inside, 12 to 15 minutes. When croutons have cooled, place them in a large bowl.
• Heat a large pot or Dutch oven over medium-high heat. Add 2 tablespoons olive oil and crumble sausage into pan. Sauté, breaking up sausage with a wooden spoon, until browned and just cooked through, 5 to 7 minutes. Transfer sausage to the bowl with the croutons using a slotted spoon.
• Return the pot to medium heat and add 2 more tablespoons olive oil, the onions, the rosemary sprig, the thyme and the chile. Season with 1/2 teaspoon salt and a few grinds of black pepper. Continue cooking another 3 to 4 minutes, stirring often, until onion is soft and starting to color slightly.
• Add half the kale and the remaining 2 tablespoons olive oil to the pan. Use tongs to turn the greens to coat them in oil and help them wilt and cook down. When there is room in the pan (from the greens wilting), add the rest of the kale and season with another 1/2 teaspoon salt and a few grinds of pepper. As soon as all the kale has wilted, transfer mixture to the bowl with the croutons and sausage. Remove rosemary. Add dates and stir well to combine.
• Return pot to stove over high heat and carefully pour in sherry. Boil until sherry is reduced by three-quarters, then add stock. Boil until mixture is reduced by half, then swirl in butter until melted.
• Pour hot liquid over crouton-kale mixture. Add almonds and toss well to combine; using tongs or your hands, squeeze and massage the stuffing to integrate the flavors and make sure bread has really soaked in all the liquid.
• Transfer stuffing to a ceramic baking dish or casserole. Cover and bake 15 minutes in the 400-degree oven. Uncover and bake 10 to 15 more minutes, or until top is golden and crisp.

KALE AND MUSHROOM STUFFING RECIPE BY TASTY

Steps:

• Preheat the oven to 425˚F (220˚C). Grease a 9x13-inch (23x33-cm) baking dish.
• Melt the butter in a large skillet over medium heat. Add the celery, onions, and garlic. Cook until softened and golden, about 5 minutes.
• Add the mushrooms and cook until softened, about 5 minutes. Add the kale, sage, and rosemary. Cook for another 5 minutes, until the kale is wilted.
• In a medium bowl, beat together the eggs, vegetable stock, half of the parsley, the salt, and pepper.
• In a large bowl, combine the bread and cooked vegetable mixture.
• Pour the egg mixture over the bread and vegetable mixture, and stir to coat.
• Transfer the stuffing to the prepared baking dish and cover with foil.
• Bake for 30 minutes, then remove the foil and bake for another 15 minutes, or until the top is golden brown.
• Top with the remaining parsley.
• Enjoy!

SAUSAGE AND KALE STUFFING

Steps:

• Preheat the oven to 375 degrees F and butter a 3-quart baking dish. Melt 6 tablespoons butter in a large pot or Dutch oven over medium-high heat. Add the sausage and cook, breaking up the meat with a wooden spoon, until lightly browned and cooked through, about 7 minutes.
• Add the celery, onions, thyme, rosemary, 1 teaspoon salt and a few grinds of pepper to the pot. Cook, stirring occasionally, until the vegetables are tender, about 5 minutes. Add the kale and cook, stirring, until just softened, about 3 minutes. Add the chicken broth and bring to a simmer, then remove from the heat and set aside.
• Whisk the eggs and parsley in a large bowl. Add the bread cubes and the sausage mixture; stir to combine. Fold in the provolone. Transfer the stuffing to the prepared baking dish. Cut the remaining 2 tablespoons butter into cubes and dot over the stuffing. Cover with foil and bake 30 minutes, then uncover and bake until golden brown, about 20 more minutes.

ROAST TURKEY WITH CORN BREAD AND KALE STUFFING AND PAPRIKA GRAVY

Steps:

• Make the stuffing:
• In a large skillet cook the onions and the celery with salt and pepper to taste in butter over moderately low heat, stirring, until the vegetables are softened. Add the kale in batches, stirring until each batch is wilted, and cook the mixture until the kale is bright green. In a bowl combine the mixture with the corn bread, stir in the sage and salt and pepper to taste, and toss the stuffing gently until it is combined well. Let the stuffing cool. The stuffing may be made 1 day in advance and kept covered and chilled. (To prevent bacterial growth, do not stuff the turkey in advance.)
• Rinse the turkey inside and out, pat it dry, and season it with salt and pepper. Pack the neck cavity loosely with some of the stuffing, fold the neck skin under the body, and fasten it with a skewer. Pack the body cavity loosely with some of the remaining stuffing and tie the drumsticks together with kitchen string. Transfer the remaining stuffing to a buttered baking dish and reserve it, covered and chilled. Spread the turkey with 1/2 stick of the butter, season it with salt and pepper, and roast it on a rack in a flameproof roasting pan in a preheated 425°F oven for 30 minutes. In a saucepan melt the remaining 1 stick butter and let it cool. Reduce the oven temperature to 325°F., baste the turkey with the pan juices, and drape it with a piece of cheesecloth, soaked in the melted butter. Roast the turkey, lifting the cheesecloth and basting the turkey every 20 minutes, for 2 1/2 to 3 hours more, or until a meat thermometer inserted in the fleshy part of a thigh registers 180°F and the juices run clear when the thigh is pierced with a skewer. During the last hour of roasting bake the reserved stuffing, drizzled with the stock and 1/2 cup of the pan juices and covered loosely. Discard the cheesecloth and the trussing string, transfer the turkey to a heated platter, reserving the juices in the roasting pan, and let it stand, covered loosely with foil, for 25 minutes.
• Make the gravy:
• Skim all but 1/3 cup of the fat from the roasting pan, add the flour to the pan, and cook the roux over moderate heat, whisking, for 3 minutes. Add the paprika and cook the mixture for 30 seconds. Add the stock in a stream, whisking, bring the mixture to a boil, whisking, and salt and pepper to taste. Simmer the gravy, stirring occasionally, for 10 minutes and transfer it to a heated sauceboat.
• Garnish the turkey with the kale leaves and the paprika leaves.

ITALIAN SAUSAGE AND KALE STUFFING

Steps:

• Brown sausage in large skillet sprayed with cooking spray, stirring occasionally; drain. Return sausage to skillet.
• Add kale; cook and stir 3 min. or until softened. Remove sausage mixture from skillet; cover to keep warm.
• Use same skillet to prepare stuffing mixes as directed on package.
• Add sausage mixture and nuts; mix lightly.

WHOLE-GRAIN STUFFING WITH KALE AND DRIED FRUIT

Steps:

• Preheat oven to 400 degrees. Put bread on a baking sheet and toast, turning once or twice, until golden and dry, 10 to 20 minutes. Remove from oven and cool a bit.
• While bread toasts, put a large pot of water to boil and salt it. Fill a large bowl with ice water. When pot comes to a boil, add kale; let it wilt for about a minute, then drain and plunge it into ice water. When cool, squeeze kale dry and roughly chop. Put kale, oil, vinegar, figs, dates, shallot, sage and nuts in a large salad bowl. Sprinkle with salt and lots of pepper and toss to coat.
• Fill a bowl with tap water and soak bread for about 3 minutes. Gently squeeze a slice dry and crumble it into salad bowl. Repeat with remaining slices. Toss well to combine stuffing and let sit for 15 to 20 minutes or cover and refrigerate for up to a day. Before finishing, taste and adjust seasoning.
• Place stuffing in bird and bake. Or to bake it outside of bird, grease a 2-quart or 9-by-13-inch baking dish and fill it with stuffing. Dot top with bits of butter if you like. Cover with foil and bake for 20 minutes; then uncover and finish baking until crisp, another 10 to 15 minutes more.

TUSCAN SAUSAGE, KALE & CIABATTA STUFFING

Steps:

• Soak all but one handful of the bread chunks in the milk and set aside. Heat the oil in a large non-stick pan and cook the onions with the fennel and chilli flakes (if using) for 10 mins until softened. Add the garlic and the cavelo nero or kale and cook for 5 mins until softened, adding more oil if needed. Leave to cool.
• Tip the onion mixture and the remaining ingredients (aside from the handful of bread) into a large bowl, season generously and use your hands to scrunch everything together really well. Scatter the stuffing into a shallow roasting tin or baking dish. Can be kept in the fridge for up to two days before baking. Top the stuffing with the remaining torn bread. To cook, heat oven to 220C/200C fan/gas 7 and bake for 30-35 mins until the top is crispy.

CHORIZO, KALE AND CORNBREAD STUFFING

Steps:

• Preheat the oven to 375 degrees F. Melt 6 tablespoons butter in a large pot or Dutch oven over medium-high heat. Add the sausage and cook, breaking it up with a wooden spoon, until lightly browned and no longer pink, about 6 minutes.
• Add the celery, onion and bell pepper; season with 1 teaspoon salt and a few grinds of pepper and cook, stirring occasionally, until softened, about 6 minutes. Add the kale and 1/2 teaspoon salt and cook, stirring, until just wilted, about 1 minute. Add the chicken broth and bring to a simmer, then remove from the heat and let cool slightly.
• Whisk the eggs and cilantro in a large bowl. Add the cornbread, potato bread and broth mixture and gently mix until all the bread is moistened.
• Butter a 3-quart baking dish. Add the stuffing and dot with the remaining 2 tablespoons butter. Cover with foil and bake 30 minutes. Uncover and continue to bake until golden brown, 20 to 30 more minutes.

KALE AND SAUSAGE STUFFING

Steps:

• Heat 1 tablespoon oil in a large skillet over medium heat. Cook sausage, breaking up large pieces with the back of a spoon, until browned, about 8 minutes. Transfer sausage to a bowl.
• Add garlic to skillet. Cook until soft, about 1 minute. Add kale and water. Cook until kale wilts and is almost completely cooked, about 3 minutes. Drain on paper towels, squeezing out excess water.
• Add kale mixture, raisins, pine nuts, sage, and remaining 2 tablespoons oil to bowl with sausage. Season with salt and pepper. Transfer to a cutting board, and finely chop. Transfer to a bowl, and refrigerate until ready to use.

COUNTRY BREAD STUFFING WITH GOAT CHEESE, KALE AND BACON

Steps:

• Preheat the oven to 375 degrees F. Butter a large baking dish and set aside.
• Heat 2 tablespoons of the canola oil in a large saute pan over medium-high heat. Add half of the bread cubes and saute until lightly golden brown on all sides, 3 to 5 minutes. Season with salt and pepper and transfer to a baking sheet. Heat 2 more tablespoons of the oil and repeat with the remaining bread.
• Return the pan to the stove over medium heat. Add the remaining 1 tablespoon oil and the bacon and cook until the bacon is golden brown and crisp, about 5 minutes. Transfer the bacon with a slotted spoon to a plate lined with paper towels.
• Add the butter to the pan with the rendered bacon fat over medium heat. Once melted, add the carrots, celery and onions and cook until soft, about 5 minutes. Add the garlic and pepper flakes and cook for 30 seconds. Add the kale and cook until wilted, about 2 minutes. Remove and cool slightly.
• Put the bread cubes in a large bowl with the cooled vegetable mixture. In a separate bowl, whisk the eggs until smooth and add to the bread. Add the stock, making sure the mixture is very, very wet. Sprinkle with salt and pepper and fold in the goat cheese, parsley, sage and reserved bacon. Transfer to the prepared pan and add the honey if using.
• Bake until golden brown and crispy on top and cooked through, about 35 minutes. Remove and let rest 15 minutes before serving.

SOURDOUGH STUFFING WITH SAUSAGE, RED ONION AND KALE

Steps:

• The recipe can be prepared through Step 2 and refrigerated overnight. Bring to room temperature before baking.
• Preheat the oven to 375°. Butter a 9-by-13-inch baking dish. On a large rimmed baking sheet, toss the sausage, onions and oil and season with salt and black pepper. Roast for about 20 minutes, until browned and softened. Scatter the kale on top of the sausage and onions and roast for about 5 minutes, until just wilted. Transfer one-fourth of the mixture to a plate and reserve. Let cool slightly.
• In a large bowl, beat the eggs with the chicken stock. Add the bread, the 1/2 stick of butter, the parsley, thyme, crushed red pepper, 1 1/2 teaspoons of salt and 1 teaspoon of black pepper; mix well. Fold in the three-fourths of sausage-kale mixture, then scrape into the prepared baking dish. Decoratively scatter the reserved sausage-kale mixture on top, gently pressing it into the stuffing. Cover the baking dish tightly with foil.
• Bake the stuffing for 30 minutes, until hot. Uncover and bake 30 minutes longer, until lightly browned. Let stand for 10 minutes before serving.

SOURDOUGH STUFFING W/KALE DATES AND TURKEY SAUSAGE

Steps:

• Heat oven 400. cut crust off of bread and tear remaining loaf into 1" croutons Place on rimmed baking sheet and drizzle w/4T oil, squeezing and tossing bread Toast till golden brown crispy on outside and tender inside, 12-15 min. Cool Heat large Dutch oven over med-high heat add 2 t oil and crumble sausage into pan Saute until browned and just cooked thru, 5-7 min Transfer sausage to bowl w/croutons w/a slotted spoon Return pot to med heat and add 2 T oil, onions, rosemary, thyme and chile Season w/ 1/2 t salt and few grinds of pepper Cook 3-4 min until onion is soft and starts to color slightly Add half the kale and remaining 2 t of oil Use tongs to turn greens and to coat in oil When greens are wilted add rest of kale and season w 1/2 t salt and a few grinds of pepper When all kale is wilted add to bowl. Remove rosemary Add dates and stir well to combine Return pot to stove over high heat and carefully pour in sherry Boil unitl sherry is reduced by 3/4, then add stock Boil until mixture is reduced by half, then swirl in butter till melted Pour hot liquid over mixture Add almonds Use hands to integrate flavors and make sure bread has soaked in all of the liquid Transfer to a ceramic baking dish Cover and bake 15 min in 400d oven Uncover and bake 1-15 min until golden and crisp

HERBED QUINOA & RED RICE STUFFING WITH KALE & PINE NUTS RECIPE - (4.7/5)

Steps:

• In a saucepan, combine the quinoa and red rice with the water and salt lightly. Set over high heat and bring to a boil. Reduce the heat to low, cover and simmer until most of the water is absorbed and the grains are tender, 15 to 20 minutes. Set aside. Preheat an oven to 375°F. Butter a 13-by-9-inch baking dish. In a large sauté pan over medium heat, melt the 3 tablespoons butter. Add the onion and celery and cook, stirring occasionally, until softened, 6 to 8 minutes, adding the kale during the last 2 minutes of cooking. Add the oregano and spices and season with salt. Cook, stirring, until the mixture is fragrant, about 1 minute. Transfer the onion mixture to a large bowl. Add the quinoa and red rice, cranberries, pine nuts, lemon zest and stock and stir until well combined. Transfer the stuffing to the prepared baking dish and bake, uncovered, for 30 minutes. Let rest for 10 minutes, then garnish with cheese and serve.

ROAST TURKEY WITH CORN BREAD AND KALE STUFFING AND PAPRIKA GRAVY RECIPE | EPICURIOUS.COM

Steps:

• Make the stuffing:
• In a large skillet cook the onions and the celery with salt and pepper to taste in butter over moderately low heat, stirring, until the vegetables are softened. Add the kale in batches, stirring until each batch is wilted, and cook the mixture until the kale is bright green. In a bowl combine the mixture with the corn bread, stir in the sage and salt and pepper to taste, and toss the stuffing gently until it is combined well. Let the stuffing cool. The stuffing may be made 1 day in advance and kept covered and chilled. (To prevent bacterial growth, do not stuff the turkey in advance.)
• Rinse the turkey inside and out, pat it dry, and season it with salt and pepper. Pack the neck cavity loosely with some of the stuffing, fold the neck skin under the body, and fasten it with a skewer. Pack the body cavity loosely with some of the remaining stuffing and tie the drumsticks together with kitchen string. Transfer the remaining stuffing to a buttered baking dish and reserve it, covered and chilled. Spread the turkey with 1/2 stick of the butter, season it with salt and pepper, and roast it on a rack in a flameproof roasting pan in a preheated 425°F oven for 30 minutes. In a saucepan melt the remaining 1 stick butter and let it cool. Reduce the oven temperature to 325°F., baste the turkey with the pan juices, and drape it with a piece of cheesecloth, soaked in the melted butter. Roast the turkey, lifting the cheesecloth and basting the turkey every 20 minutes, for 2 1/2 to 3 hours more, or until a meat thermometer inserted in the fleshy part of a thigh registers 180°F and the juices run clear when the thigh is pierced with a skewer. During the last hour of roasting bake the reserved stuffing, drizzled with the stock and 1/2 cup of the pan juices and covered loosely. Discard the cheesecloth and the trussing string, transfer the turkey to a heated platter, reserving the juices in the roasting pan, and let it stand, covered loosely with foil, for 25 minutes.
• Make the gravy:
• Skim all but 1/3 cup of the fat from the roasting pan, add the flour to the pan, and cook the roux over moderate heat, whisking, for 3 minutes. Add the paprika and cook the mixture for 30 seconds. Add the stock in a stream, whisking, bring the mixture to a boil, whisking, and salt and pepper to taste. Simmer the gravy, stirring occasionally, for 10 minutes and transfer it to a heated sauceboat.
• Garnish the turkey with the kale leaves and the paprika leaves.

SOURDOUGH STUFFING WITH KALE, DATES AND TURKEY SAUSAGE

Steps:

• Heat oven to 400 degrees. Cut the crust off the bread and tear remaining loaf into 1-inch croutons. Place torn bread on a rimmed baking sheet and drizzle with 4 tablespoons olive oil, squeezing and tossing bread with your hands to help it absorb the oil. Transfer to oven and toast, tossing once or twice, until croutons are golden brown and crispy on the outside but still a little soft and tender inside, 12 to 15 minutes. When croutons have cooled, place them in a large bowl.
• Heat a large pot or Dutch oven over medium-high heat. Add 2 tablespoons olive oil and crumble sausage into pan. Sauté, breaking up sausage with a wooden spoon, until browned and just cooked through, 5 to 7 minutes. Transfer sausage to the bowl with the croutons using a slotted spoon.
• Return the pot to medium heat and add 2 more tablespoons olive oil, the onions, the rosemary sprig, the thyme and the chile. Season with 1/2 teaspoon salt and a few grinds of black pepper. Continue cooking another 3 to 4 minutes, stirring often, until onion is soft and starting to color slightly.
• Add half the kale and the remaining 2 tablespoons olive oil to the pan. Use tongs to turn the greens to coat them in oil and help them wilt and cook down. When there is room in the pan (from the greens wilting), add the rest of the kale and season with another 1/2 teaspoon salt and a few grinds of pepper. As soon as all the kale has wilted, transfer mixture to the bowl with the croutons and sausage. Remove rosemary. Add dates and stir well to combine.
• Return pot to stove over high heat and carefully pour in sherry. Boil until sherry is reduced by three-quarters, then add stock. Boil until mixture is reduced by half, then swirl in butter until melted.
• Pour hot liquid over crouton-kale mixture. Add almonds and toss well to combine; using tongs or your hands, squeeze and massage the stuffing to integrate the flavors and make sure bread has really soaked in all the liquid.
• Transfer stuffing to a ceramic baking dish or casserole. Cover and bake 15 minutes in the 400-degree oven. Uncover and bake 10 to 15 more minutes, or until top is golden and crisp.

KALE STUFFING

Steps:

• Preheat the oven to 350 degrees F (175 degrees C). Butter a 2-quart baking dish.
• Massage kale for a few minutes until leaves are wilted.
• Melt butter in a large skillet over medium heat. Add onion and garlic. Cook and stir until onion is tender, about 5 minutes. Add kale and heat through.
• Place kale mixture in a bowl; add bread and Parmesan cheese. Pour in broth and toss until mixture is moistened. Season with salt and pepper; mix well. Transfer mixture to the prepared baking dish.
• Bake in the preheated oven until browned, 30 to 40 minutes.

POTATO BREAD-KALE STUFFING WITH ANDOUILLE SAUSAGE

Steps:

• Chop the potato bread into 1/2-inch cubes to make 16 cups. Stale bread works best for stuffing-if yours is fresh, spread out the cubes on baking sheet and dry in a 300 degrees F oven, 15 to 20 minutes.
• Heat 1 stick butter in a large skillet over medium heat. Add the onions, celery, sage, thyme, and salt and pepper to taste. Cook, stirring, until the vegetables are tender, about 5 minutes. Add the chicken broth; bring to a simmer and remove from the heat.
• Meanwhile, stem and chop the kale and blanch for 2 minutes. Beat the eggs and parsley in a large bowl; stir in the bread cubes, the vegetable-broth mixture and the prepared kale. Stir in the sausage.
• Transfer the mixture to a buttered 3-to-4-quart baking dish and dot with the remaining 2 tablespoons butter. Cover with foil and bake at 375 degrees F, 30 minutes. Uncover and bake until golden, about 20 more minutes.

RYE, KALE, MUSHROOM & PUMPKIN SEED STUFFING RECIPE - (4.3/5)

Steps:

• Preheat oven to 350°F. Brush a shallow 3-qt. baking dish and a sheet of foil with oil. Place bread cubes in a very large bowl. Toast pumpkin seeds on a rimmed baking sheet, tossing once, until golden brown, 8 to 10 minutes. Let cool. Add to bowl with bread. Heat 2 tablespoons oil in a large skillet over medium-high. Add half of mushrooms, season with salt and pepper, and cook, tossing occasionally, until softened, 6 to 8 minutes. Transfer to bowl. Repeat with 2 tablespoons oil and remaining mushrooms. Heat 1/4 cup oil in skillet. Add celery and shallots, season with salt and pepper, and cook, stirring often, until shallots are golden brown and soft, 8 to 10 minutes. Add kale, sage, and rosemary and cook, tossing often, until kale is wilted, about 2 minutes. Transfer to bowl. Reduce heat to medium and cook wine in skillet, scraping up any browned bits, until almost all evaporated, about 1 minute. Drizzle over bread mixture. Whisk eggs, 2 cups stock, and ½ cup oil in a medium bowl; pour over bread mixture. Season with salt and pepper and toss, adding more stock 1/4 cup at a time, you may not use it al), until combined and bread is hydrated. Transfer to prepared dish and drizzle with oil. Cover with oiled foil; bake until a paring knife inserted into the center comes out hot, 30-35 minutes. Increase oven temperature to 450°F. Uncover and bake until top is golden brown and crisp, 20 to 25 minutes. Let sit 10 minutes before serving. DO AHEAD: Stuffing can be assembled 1 day ahead. Cover and chill until ready to bake.

RYE, KALE, MUSHROOM, AND PUMPKIN SEED STUFFING

Steps:

• Preheat oven to 350°. Brush a shallow 3-quart baking dish and a sheet of foil with oil. Place bread in a very large bowl.
• Toast seeds on a rimmed baking sheet, tossing once, until golden brown, 8-10 minutes. Let cool; add to bowl with bread.
• Heat 2 tablespoons oil in a large skillet over medium-high. Add half of mushrooms, season with salt and pepper, and cook, tossing occasionally, until softened, 6-8 minutes. Transfer to bowl. Repeat with 2 tablespoons oil and remaining mushrooms.
• Heat 1/4 cup oil in skillet. Add celery and shallots, season with salt and pepper, and cook, stirring often, until shallots are golden brown and soft, 8-10 minutes. Add kale, sage, and rosemary and cook, tossing often, until kale is wilted, about 2 minutes. Transfer to bowl.
• Reduce heat to medium and cook wine in skillet, scraping up any browned bits, until almost all evaporated, about 1 minute. Drizzle over bread mixture.
• Whisk eggs, 2 cups stock, and 1/2 cup oil in a medium bowl; pour over bread mixture. Season with salt and pepper and toss, adding more stock 1/4-cupful at a time as needed (you may not use it all), until combined and bread is hydrated. Transfer to prepared dish and drizzle with oil.
• Cover with oiled foil; bake until a paring knife inserted into the center comes out hot, 30-35 minutes. Increase oven temperature to 450°. Uncover and bake until top is golden brown and crisp, 20-25 minutes. Let sit 10 minutes before serving.
• Do ahead: Stuffing can be assembled 1 day ahead. Cover and chill.

SAUSAGE AND KALE STUFFING

Steps:

• Preheat the oven to 350 degrees F. Butter a 3-quart casserole dish. Heat 1 tablespoon butter in a large Dutch oven or heavy pot over medium heat. Add the sausage and cook until golden brown, about 6 minutes. Add the leeks and squash and season with 1 teaspoon each salt and pepper; cook until the leeks are soft, about 3 minutes. Add the kale, toss and cover until the kale wilts, about 4 minutes. Add the focaccia cubes and the remaining 3 tablespoons butter and toss until the butter melts. Whisk the egg and chicken broth in a bowl until smooth; stir in the diced parmesan and 1 teaspoon salt. Pour the broth mixture over the bread mixture; cook until the liquid is absorbed by the bread, about 1 minute. Transfer the bread mixture to the prepared casserole dish. Scatter the shredded cheese evenly on top and bake until golden and cooked through, about 40 minutes. Set aside for 5 minutes before serving.