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French Onion Beef Casserole: Easy Dinner Recipe for Families

French Onion Ground Beef and Rice Casserole

A cozy, creamy, ultra-comforting casserole packed with savory French onion flavor, tender ground beef, fluffy rice, and melty mozzarella. Perfect for busy weeknights and family dinners.
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Prep Time 10 minutes
Cook Time 40 minutes
Total Time 50 minutes
Servings: 6 servings
Course: Casserole, Dinner
Cuisine: American
Ingredients Method Notes

Ingredients
  

  • 1 lb ground beef
  • 3 cups cooked white rice
  • 10.5 oz condensed French onion soup
  • 1 cup sour cream
  • 2 cups shredded mozzarella cheese
  • 2 tbsp butter
  • 1 tsp onion powder
  • 1 tsp garlic powder
  • Salt and pepper to taste
  • 1 tbsp chopped parsley (optional)

Method
 

  1. In a large skillet, melt the butter over medium heat. Add the ground beef and cook until browned. Drain any excess fat.
  2. Season with onion powder, garlic powder, salt, and pepper. Stir to combine.
  3. In a bowl, mix together the cooked beef, cooked rice, condensed French onion soup, and sour cream until evenly combined.
  4. Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking dish.
  5. Spread the beef and rice mixture into the baking dish. Top with shredded mozzarella cheese.
  6. Bake uncovered for 25–30 minutes, or until the cheese is melted and bubbly.
  7. Garnish with chopped parsley before serving, if desired.

Notes

For extra flavor, sauté sliced onions with the beef or top with crispy fried onions before baking.