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Cheesy French Onion Beef Casserole

Cheesy French Onion Beef Casserole Recipe

A cozy, cheesy, and hearty casserole packed with savory caramelized onions and flavorful ground beef. Perfect for weeknight dinners or impressing your friends. Comfort food at its finest, gooey, melty, and totally irresistible.
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Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
Servings: 4 People
Course: Main Dish
Cuisine: American
Calories: 450
Ingredients Method Notes

Ingredients
  

  • 1 lb 450g ground beef
  • 3 large onions thinly sliced
  • 3 cloves garlic minced
  • 1 tsp thyme
  • 1 tsp salt
  • ½ tsp black pepper
  • 1 cup beef broth
  • 1 tbsp Worcestershire sauce
  • 2 cups shredded Swiss or Gruyère cheese
  • 1 cup breadcrumbs optional
  • 2 tbsp butter
  • 2 tbsp olive oil

Method
 

  1. Preheat oven to 375°F (190°C).
  2. Caramelize onions in butter and olive oil until golden brown.
  3. Brown ground beef in a skillet, season with salt and pepper.
  4. Add garlic and thyme, cook 1–2 minutes.
  5. Stir in beef broth and Worcestershire sauce, simmer 3–5 minutes.
  6. In a baking dish, layer beef mixture, onions, and half the cheese.
  7. Top with remaining cheese and breadcrumbs.
  8. Bake 20–25 minutes until cheese is bubbly and golden.
  9. Let cool 5 minutes before serving.

Notes

  • Caramelizing onions enhances sweetness.
  • Use your favorite cheese for variation.
  • Breadcrumbs add crunch but are optional.
  • Perfect for leftovers; reheats well.
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