Description

French Onion Beef Casserole is a cozy, weeknight-friendly bake that delivers all the flavors of classic French onion soup in hearty, family-style form. Tender egg noodles, savory ground beef, and deeply caramelized onions are blanketed in Swiss cheese and finished with a crunchy French fried onion topping for the perfect comfort food dinner.

Ingredients

Scale

1 pound ground beef
2 large onions, thinly sliced
2 tablespoons olive oil
2 cups beef broth
1 tablespoon Worcestershire sauce
1 teaspoon dried thyme
Salt and pepper, to taste
4 cups cooked egg noodles
1 cup shredded Swiss cheese
1/2 cup French fried onions

Instructions

Preheat the oven to 350°F (175°C). Grease a 9×13-inch baking dish and set aside.
Heat the olive oil in a large skillet over medium heat. Add the sliced onions and cook, stirring frequently, for 15–20 minutes, until deeply caramelized and golden brown.
In a separate pan, cook the ground beef over medium heat, breaking it apart with a spoon, until browned and cooked through. Drain off any excess fat.
Add the caramelized onions to the pan with the beef. Stir in the beef broth, Worcestershire sauce, dried thyme, salt, and pepper.
Bring the mixture to a simmer and cook for about 5 minutes to allow the flavors to meld and the sauce to slightly reduce.
In a large mixing bowl, combine the cooked egg noodles with the beef and onion mixture. Toss gently until the noodles are evenly coated.
Transfer the mixture to the prepared 9×13-inch baking dish, spreading it into an even layer.
Sprinkle the shredded Swiss cheese evenly over the top, then add the French fried onions in an even layer.
Bake for 25–30 minutes, or until the cheese is melted and bubbly and the topping is golden brown.
Let the casserole rest for 5–10 minutes before serving to set slightly and make slicing easier.

Notes

For deeper flavor, cook the onions low and slow until very soft and dark golden; don’t rush this step.
Use low-sodium beef broth if you’re sensitive to salt, then adjust seasoning at the end.
You can assemble the casserole a few hours ahead and refrigerate, then bake just before serving, adding 5–10 minutes to the bake time if chilled.
If the top browns too quickly, tent loosely with foil for the last 5–10 minutes of baking.

Prep Time: 15 minutes
Cook Time: 30 minutes
Category: Casserole, Main Course
Method: Baked
Cuisine: American, French-inspired

Nutrition

Serving Size: 1/6 of casserole
Calories: 450 kcal
Sugar: 4 g (approx.)
Sodium: 780 mg (approx.)
Fat: 24 g (approx.)
Saturated Fat: 9 g (approx.)
Unsaturated Fat: 13 g (approx.)
Trans Fat: 0.5 g (approx.)
Carbohydrates: 34 g (approx.)
Fiber: 2 g (approx.)
Protein: 23 g (approx.)
Cholesterol: 80 mg (approx.)

Keywords: french onion beef casserole, beef casserole, french onion casserole, weeknight dinner, comfort food, egg noodle bake