If you’re looking for a comforting and satisfying meal, this French onion beef casserole is a perfect choice. It’s a dish that brings together the rich flavors of caramelized onions, tender beef, and melted cheese, creating a symphony of taste that warms the soul. Whether it’s a busy weeknight or a cozy weekend, this casserole is sure to please everyone at the dinner table.
Imagine a creamy, cheesy casserole topped with golden-brown onions and hearty beef, all layered in a dish that smells amazing as it bakes. This comforting recipe is not only easy to assemble, but it’s also an excellent way to use up leftover roast beef or steak. Plus, it pairs wonderfully with a fresh salad or crusty bread.
Delicious and Hearty French Onion Beef Casserole

This casserole features layers of succulent beef, richly flavored caramelized onions, and gooey melted cheese, all baked to perfection. The taste is a delightful combination of savory, sweet, and umami, making it a standout dish for any occasion.
Ingredients
- 2 cups cooked beef, shredded or diced
- 3 large onions, thinly sliced
- 2 cups beef broth
- 1 cup sour cream
- 2 cups shredded Gruyère cheese (or Swiss cheese)
- 1 tablespoon olive oil
- 1 teaspoon dried thyme
- Salt and pepper to taste
- 1 package of frozen egg noodles (or homemade noodles)
- Fresh parsley for garnish (optional)
Instructions
- Preheat the Oven: Preheat your oven to 350°F (175°C).
- Caramelize the Onions: In a large skillet, heat olive oil over medium heat. Add the sliced onions, and cook slowly, stirring occasionally, until they are golden brown and caramelized, about 20-25 minutes.
- Mix Ingredients: In a large bowl, combine the cooked beef, caramelized onions, beef broth, sour cream, thyme, salt, and pepper. Stir until well combined.
- Layer the Casserole: In a greased 9×13 inch baking dish, layer half of the cooked egg noodles. Pour half of the beef mixture over the noodles, then sprinkle with one cup of shredded cheese. Repeat the layers with the remaining noodles, beef mixture, and cheese.
- Bake: Cover the casserole with aluminum foil and bake in the preheated oven for 30 minutes. Remove the foil and bake for an additional 15-20 minutes, until the cheese is bubbly and golden.
- Serve: Let the casserole cool slightly before slicing. Garnish with fresh parsley if desired, and serve warm.
Cook and Prep Times
- Prep Time: 15 minutes
- Cook Time: 55 minutes
- Total Time: 1 hour 10 minutes
Nutrition Information
- Servings: 6 servings
- Calories: 450kcal
- Fat: 25g
- Protein: 30g
- Carbohydrates: 30g
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