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French Onion Ground Beef and Rice Casserole

A close-up slice of french onion ground beef and rice casserole topped with melted white and cheddar cheese.
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Make this hearty French Onion Ground Beef and Rice Casserole for a satisfying, one-dish dinner that captures the savory depth of classic French Onion Soup.

Ingredients

Scale
  • 1 tablespoon olive oil
  • 1.5 pounds ground beef
  • 2 large yellow onions, thinly sliced
  • 1 teaspoon salt
  • 0.5 teaspoon black pepper
  • 2 cloves garlic, minced
  • 1 tablespoon all-purpose flour
  • 2 cups beef broth
  • 1 tablespoon Worcestershire sauce
  • 1 teaspoon dried thyme
  • 1 cup uncooked long-grain white rice
  • 1 cup shredded Swiss cheese
  • 0.5 cup shredded Gruyère cheese

Instructions

  1. Preheat your oven to 375 degrees Fahrenheit. Lightly grease a 9×13 inch baking dish.
  2. Heat the olive oil in a large skillet over medium heat. Add the sliced onions and cook slowly, stirring occasionally, for 15 to 20 minutes until they are deeply caramelized and brown. Remove the onions from the skillet and set them aside.
  3. Add the ground beef to the same skillet. Cook over medium-high heat, breaking it up with a spoon, until it is fully browned. Drain off any excess fat.
  4. Return half of the caramelized onions to the skillet with the beef. Add the minced garlic, salt, and pepper. Cook for 1 minute until the garlic is fragrant.
  5. Sprinkle the flour over the beef mixture and stir for 1 minute. Slowly pour in the beef broth and Worcestershire sauce, scraping up any browned bits from the bottom of the pan. Stir in the dried thyme.
  6. Bring the mixture to a simmer. Stir in the uncooked rice until it is evenly distributed.
  7. Pour the entire beef and rice mixture into the prepared baking dish. Cover the dish tightly with aluminum foil.
  8. Bake for 40 minutes.
  9. Remove the foil. Sprinkle the remaining caramelized onions over the top of the casserole. Mix the Swiss and Gruyère cheeses together and spread them evenly over the top.
  10. Return the casserole to the oven, uncovered, and bake for another 15 to 20 minutes, or until the rice is tender and the cheese is melted and bubbly. Let the casserole rest for 5 minutes before serving.

Notes

  • For deeper flavor, use low-sodium beef broth and add 1 teaspoon of dried parsley with the thyme.
  • If you want a richer cheese topping, use only Gruyère cheese.
  • To save time, you can use pre-sliced onions from the produce section, but they will require less cooking time to caramelize.

Nutrition

Find it online: https://cookingzenith.com/french-onion-ground-beef-and-rice-casserole/