Best French Onion Soup Casserole Recipes

FRENCH ONION SOUP CASSEROLE

Steps:

• Melt the butter and oil in a large Dutch oven or pot over medium heat. Add half the onions and celery, 1/2 teaspoon salt and a few grinds of pepper. Top with the remaining onions and celery, 1/2 teaspoon salt, a few grinds of pepper, the bay leaves and the thyme sprigs. Cook, uncovered and stirring occasionally, until all the liquid evaporates and the onions are very soft and golden brown, 45 minutes to 1 hour. (If the onions are soft but could be more golden, increase the heat slightly for a few minutes toward the end of cooking.)
• Add the flour, and stir until completely absorbed, about 1 minute. Add the broth and wine, and simmer until almost completely evaporated, about 2 minutes. Remove from the heat, and let cool for a few minutes. Remove the bay leaves and thyme stems. (The onions can be made, cooled and refrigerated up to 2 days ahead.)
• Meanwhile, preheat the oven to 350 degrees F. Bake the baguette slices on a baking sheet until they're slightly toasted but not golden, 2 to 3 minutes per side. Let cool.
• Shingle and slightly overlap half the bread slices in a 3-quart flameproof baking dish. Top with the onion mixture in 1 layer. Shingle, overlapping, with the remaining bread. Sprinkle the Gruyere over the top. Cover with foil, and bake until the onion mixture is hot and the cheese is melted, about 40 minutes. Remove the foil, switch the oven from bake to broil and broil until the top is golden in spots. Sprinkle the thyme leaves over the top. Serve hot.

FRENCH ONION SOUP CASSEROLE

Steps:

• Set an oven rack about 6 inches from the heat source and preheat the oven's broiler.
• Heat 3 tablespoons of butter in a pot over medium-high heat. Cook onions in the hot butter until tender, 5 to 7 minutes. Blend in flour and pepper. Add broth and sherry; cook and stir until thickened and bubbly. Pour into a 1-quart casserole dish.
• Melt remaining 2 tablespoons butter and toss with croutons. Spoon over onion mixture. Sprinkle with Swiss and Parmesan cheeses.
• Place under the preheated broiler just until cheeses melt, about 5 minutes. Serve immediately.

FRENCH ONION SOUP CASSEROLE

Steps:

• In a large pot, melt 2 tablespoons of the butter over medium heat. Add the oil and onions and toss well to coat the onions. Season with salt and pepper, add the bay leaf, and continue to cook, stirring occasionally, until the onions soften, 5 to 7 minutes.
• Reduce the heat to medium low and continue to cook, uncovered, stirring occasionally, until the onions begin to caramelize, 25 to 30 minutes longer.
• While the onions cook, make the bechamel sauce: Melt 2 tablespoons of the remaining butter in a small saucepan over medium heat. Add the flour and whisk to combine. Whisk in the milk and bring to a simmer, whisking. When the sauce thickens, stir in the Parmesan and nutmeg. Season with salt and pepper. Set aside.
• Preheat the oven to 400 degrees F. Grease a 9-by-13-inch baking dish with the remaining 1 tablespoon butter.
• When the onions begin to caramelize, stir in the balsamic and Worcestershire and cook for 1 to 2 minutes more. Add the broth and thyme and bring to a simmer over medium heat. Remove and discard the bay leaf.
• Transfer the onion mixture to the prepared dish. Arrange the baguette slices on top, then spoon a little bechamel sauce over each piece of bread. Top with the mozzarella. Bake until the cheese is melted and begins to brown and the filling is bubbling, 35 to 40 minutes.
• Let cool for 5 to 10 minutes. Sprinkle with chives and serve.

FRENCH ONION SOUP CASSEROLE RECIPE - (4.5/5)

Steps:

• Slice onions and try not to cry. With this many onions, its hard. Melt butter in a saute pan over medium heat, and add onions. Saute onions until clear, a little brown is ok. In a shallow 2 qt. casserole pan, layer onions, 2/3 of cheese and pepper to taste. Melt butter in a saute pan over medium heat, and add onions. Saute onions until clear, a little brown is ok. In a shallow 2 qt. casserole pan, layer onions, 2/3 of cheese and pepper to taste. In a sauce pan, heat soup, milk, and soy sauce, stirring to blend. Pour soup mixture in a casserole and stir gently to mix. Top with bread slices. Bake at 350 uncovered for 15 minutes. After 15 minutes, top of bread should be nice and toasted. Push bread slices under the sauce and top with the remaining cheese Place casserole back in oven and finish baking for 15 more minutes.

FRENCH ONION SOUP CASSEROLE RECIPE

Steps:

• Set a large pot or Dutch oven medium high heat, melt butter and add in onions, garlic and salt. Cook, stirring frequently until onions become caramelized, about 30-40 minutes. If onions start to stick to pan, just stir a tbsp or two of the broth as needed. Once onions are caramelized, add in the broth, wine, Worcestershire sauce, paprika, pepper and thyme. Simmer over medium heat for 20 minutes, stirring occasionally. Turn heat to low and add in vinegar and season with additional salt and pepper if desired. Cover and keep over low heat to stay hot while you prepare the bread. Preheat oven broiler. Slice 1/3 of a loaf of French baguette into about 12 slices. Spray a baking sheet with nonfat cooking spray, and arrange baguette slices evenly on sheet. Lightly mist again with an olive oil mister or the nonfat cooking spray and then place in oven for 3 minutes on each side, or until bread is well toasted on both sides. Remove bread from oven and set it to bake on 375 degrees. Pour onion mixture into an 8X8 casserole dish. Top evenly with bread slices and then cover evenly with Swiss cheese slices. Place casserole dish into oven and let bake until cheese is melted and bubbly and beginning to brown, about 10-15 minutes. Serve immediately.

FRENCH ONION SOUP CASSEROLE RECIPE

Steps:

• Melt butter in a Dutch oven over medium-low; add onions, salt, pepper, thyme and parsley sprigs, and bay leaves; cook, stirring often, until onions are golden brown, about 1 hour. Meanwhile, preheat oven to 350°F. Arrange baguette slices in a single layer on a baking sheet. Bake in preheated oven until lightly toasted, 12 minutes. Set aside. Remove and discard thyme and parsley sprigs and bay leaves from onion mixture. Add flour, and cook, stirring constantly, 2 minutes. Add broth and sherry; bring to a boil over high. Boil, stirring constantly, until slightly thickened, 2 to 3 minutes. Layer half of the toasted baguette slices in a 13- x 9-inch baking dish. Spoon onion mixture evenly over bread. Top evenly with remaining baguette slices. Sprinkle with cheese; cover with aluminum foil. Bake in preheated oven 30 minutes. Increase heat to broil. Remove foil; broil until cheese is bubbly, about 3 minutes. Sprinkle with thyme leaves.

FRENCH ONION SOUP CASSEROLE

Steps:

• Directions; -Slice onions and try not to cry. With this many onions, its hard. -Melt butter in a saute pan over medium heat, and add onions. Saute onions until clear, a little brown is ok. In a shallow 2 qt. casserole pan, layer onions, 2/3 of cheese and pepper to taste. -In a sauce pan, heat soup, milk, and soy sauce, stirring to blend. Pour soup mixture in a casserole and stir gently to mix. Top with bread slices. Bake at 350 uncovered for 15 minutes. After 15 minutes, top of bread should be nice and toasted. -Push bread slices under the sauce and top with the remaining cheese -Place casserole back in oven and finish baking for 15 more