Go Back Email Link

French Onion Ground Beef And Rice Casserole

A hearty, one-pan casserole combining the rich flavor of caramelized onions, seasoned ground beef, and tender rice, finished with melty cheese—perfect for weeknights or sharing.
Print Recipe Pin Recipe

Ingredients
  

For the Casserole:

  • 1 tablespoon olive oil or butter
  • 2 large onions thinly sliced
  • 1 lb ground beef
  • 2 cloves garlic minced
  • 1 cup uncooked long-grain white rice
  • 2 cups beef broth
  • 1 teaspoon Worcestershire sauce
  • 1 teaspoon dried thyme
  • Salt and pepper to taste

For the Topping:

  • 1½ cups shredded mozzarella cheese or Gruyère for more French onion flavor
  • ½ cup grated Parmesan cheese

Optional Garnish:

  • Chopped fresh parsley

Instructions
 

  • Caramelize the onions: Heat olive oil in a skillet over medium heat. Add sliced onions and cook for 15–20 minutes, stirring occasionally, until golden brown. Remove and set aside.
  • Cook the ground beef: In the same skillet, cook ground beef over medium heat for 6–8 minutes, breaking it apart. Drain any excess fat and add minced garlic. Sauté for 1 minute.
  • Build the casserole: Add caramelized onions back to the pan, followed by uncooked rice, beef broth, Worcestershire sauce, thyme, salt, and pepper. Simmer, cover, and cook on low for 15–20 minutes until the rice is tender.
  • Add the cheese: Preheat the oven to 375°F (190°C). Sprinkle mozzarella and Parmesan cheese over the casserole.
  • Bake the casserole: Transfer to the oven (or a baking dish) and bake for 15–20 minutes until the cheese is melted and golden.
  • Let the casserole rest for 5 minutes, then serve warm, garnished with chopped parsley if desired.