Best Mushroom Tomato And Gruyere Breakfast Casserole Recipes

CARAMELIZED ONION, SPINACH AND GRUYERE STRATA WITH SAUTEED CHERRY TOMATOES

Steps:

• Preheat the oven to 325 degrees F. Put the bread on a baking sheet and toast until lightly golden brown on both sides, about 10 minutes. Remove and let cool.
• Meanwhile, heat the butter and canola oil in a large saute pan over medium heat until shimmering. Add the onions and toss to coat, then add the sugar and season with salt and pepper. Cook, stirring occasionally, until the onions are golden brown and caramelized, about 20 minutes. Remove from the heat and let cool slightly.
• In a large bowl, combine the toasted bread, caramelized onions and spinach. In another large bowl, whisk the eggs, milk, heavy cream, 1 1/2 cups cheese, the mustard, 1 teaspoon salt, 1/2 teaspoon pepper, the thyme and nutmeg. Butter a 9-by-13-inch baking dish. Add the bread mixture to the baking dish, then pour the egg mixture over the bread and press down to make sure it is totally submerged.
• Increase the oven temperature to 350 degrees F. Bake the strata, uncovered, until it is golden brown on top, puffed slightly and doesn't shimmy with uncooked custard when you shake the pan, 50 minutes to 1 hour; sprinkle with the remaining 1/2 cup cheese during the last 10 minutes of baking. Let cool 5 minutes before serving.
• Meanwhile, prepare the tomatoes: Heat the canola oil in a large saute pan over high heat until it begins to shimmer. Add the cherry tomatoes, season with salt and pepper and cook until softened, 4 to 5 minutes. Add the chives and remove from the heat. Serve the strata with the sauteed tomatoes.

SPINACH, MUSHROOM AND CHEESE BREAKFAST CASSEROLE

Steps:

• Grease a 9-by-13-inch (3-quart) casserole dish with oil.
• Toss the bread cubes with 2 tablespoons of the oil, 1/4 teaspoon salt and a few grinds of pepper in a large bowl. Heat a large skillet over medium heat. Add the bread to the skillet, and cook, tossing occasionally, until toasted and golden brown, about 8 minutes. Return the toasted bread to the bowl to cool.
• Wipe out the skillet. Heat the remaining 2 tablespoons oil over medium-high heat until it starts to shimmer. Add the mushrooms in one layer (resist the urge to stir right away), and cook until they start to brown, about 3 minutes; stir, then continue to brown for 2 minutes more. Add the garlic, thyme, 1/4 teaspoon salt and some pepper, stir continuously for 1 minute, then fold in the spinach and another 1/4 teaspoon salt. Continue to cook, stirring often, until the spinach is wilted, 1 to 2 minutes. Remove from the heat.
• Place half the bread cubes in the prepared casserole dish, and sprinkle them with half each of the Gruyere and Parmesan. Add the mushroom-spinach mixture in an even layer. Top with the remaining bread cubes, Gruyere and Parmesan.
• In a large bowl, whisk together the eggs, half-and-half, 1/2 teaspoon salt and several grinds of pepper. Pour the egg mixture into the casserole dish. Cover with plastic wrap, and refrigerate for at least 6 hours up to overnight. Remove the casserole from the refrigerator 30 minutes before baking.
• Preheat the oven to 350 degrees F. Bake the casserole until the custard is set and the top is golden brown, 50 to 55 minutes. Cool for at least 15 minutes before serving warm or at room temperature.

BUTTERY BREAKFAST CASSEROLE

Steps:

• Heat oven to 500 degrees. Spread croissants on a large baking sheet and toast, cut side up, until golden brown, 5 to 10 minutes (watch carefully to see that they do not burn). Let cool, then tear into large bite-size pieces.
• In a medium skillet over medium-high heat, warm the olive oil. Add sliced scallions and sausage meat; cook, breaking up meat with a fork, until mixture is well browned, about 5 minutes. Stir in sage, and remove from heat.
• In a large bowl, toss together croissants and sausage mixture. In a separate bowl, whisk together eggs, milk, cream, 1 1/2 cups cheese, salt and pepper.
• Lightly oil a 9- x 13-inch baking dish. Turn croissant mixture into pan, spreading it out evenly over the bottom. Pour custard into pan, pressing croissants down gently to help absorb the liquid. Cover pan with plastic wrap and refrigerate at least 4 hours or overnight.
• When you're ready to bake the casserole, heat oven to 350 degrees. Scatter the remaining grated cheese over the top of the casserole. Transfer to oven and bake until casserole is golden brown and firm to the touch, 45 minutes. Let stand 10 minutes. Garnish with sliced scallion tops before serving.