Cheesy French Onion Hamburger Casserole 🧅🧀🥩
Rich, hearty, and irresistibly cheesy, this Cheesy French Onion Hamburger Casserole is pure comfort in a dish! It combines savory ground beef, caramelized onions, creamy sauce, and a golden, bubbly layer of melted cheese — delivering cozy flavor in every bite. Perfect for busy weeknights or laid-back family dinners, it’s that one-pan meal everyone will crave.
Ingredients
- 1 lb ground beef
- 2 tablespoons butter
- 2 large onions, thinly sliced
- 2 cloves garlic, minced
- 1 teaspoon sugar
- 1 teaspoon Worcestershire sauce
- 1 teaspoon thyme (fresh or dried)
- 1 (10.5 oz) can cream of mushroom soup
- ½ cup beef broth
- ½ cup sour cream
- 2 cups egg noodles (uncooked)
- 1 ½ cups shredded mozzarella or Swiss cheese
- ½ cup shredded Parmesan cheese
- Salt and black pepper to taste
- Chopped parsley for garnish
Instructions
Preheat oven to 375°F (190°C) and grease a 9×13-inch baking dish. In a skillet, melt butter over medium heat. Add onions, sugar, and a pinch of salt. Cook slowly for 15–20 minutes, stirring occasionally until golden and caramelized. Add minced garlic and cook for another minute. Set aside.
In the same skillet, brown the ground beef until fully cooked. Drain excess fat. Stir in Worcestershire sauce, thyme, cream of mushroom soup, beef broth, and sour cream. Add the caramelized onions and mix until well combined. Season with salt and pepper to taste.
Add the uncooked egg noodles and stir until they’re coated evenly in the sauce. Pour the mixture into the prepared baking dish, top with mozzarella and Parmesan cheese, and cover with foil.
Bake for 25 minutes, then remove the foil and bake another 10–15 minutes, or until the top is golden and bubbly. Let cool for 5 minutes before serving. Garnish with parsley.
Tips for Success
- For richer flavor, use a mix of Swiss and Gruyère cheese.
- If you prefer softer noodles, pre-cook them halfway before mixing into the casserole.
- Add a splash of sherry or red wine while caramelizing onions for a deeper French onion taste.
Serving Ideas
Serve with a crisp green salad, roasted vegetables, or garlic bread for a complete comfort meal. It also reheats beautifully for next-day leftovers.
Nutritional Information (per serving)
Calories: ~480 kcal | Protein: 30g | Carbs: 28g | Fat: 28g
Conclusion
The Cheesy French Onion Hamburger Casserole is the definition of comfort food — creamy, savory, and overflowing with melted cheese and onion goodness. Every bite feels like a warm hug, making it a go-to favorite for cozy nights, potlucks, and family gatherings. Simple ingredients, rich flavor, and a crowd-pleasing finish — this casserole truly has it all!