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French Onion Ground Beef Casserole with Rice

French onion ground beef casserole - featured image
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This French Onion Ground Beef Casserole with Rice is a hearty, comforting dinner that combines the flavors of classic French onion soup with savory beef, tender rice, and gooey cheese. Ready in just 30 minutes, it’s perfect for busy weeknights and sure to be a family favorite.

Ingredients

Scale
  • 1 pound ground beef (85% lean recommended)
  • 1 large yellow onion, thinly sliced
  • 2 cups cooked white rice (day-old or leftover preferred)
  • 1 can (10.5 oz) condensed French onion soup
  • 1/2 cup sour cream
  • 1 tablespoon Worcestershire sauce
  • 1 teaspoon garlic powder
  • 1/2 teaspoon salt (or to taste)
  • 1/4 teaspoon black pepper (or to taste)
  • 1 cup shredded Swiss cheese
  • 1 cup shredded cheddar cheese
  • 2 tablespoons unsalted butter
  • 2 tablespoons fresh parsley, chopped (optional, for garnish)

Instructions

  1. Preheat your oven to 375°F (190°C). Grease a 9×13-inch baking dish with butter or nonstick spray.
  2. Melt 2 tablespoons butter in a large skillet over medium heat. Add the sliced onion and a pinch of salt. Cook, stirring often, for 8-10 minutes until onions are golden brown and caramelized.
  3. Add ground beef to the skillet with the onions. Break up the meat and cook until no longer pink, about 5-7 minutes. Drain excess fat if needed.
  4. In a medium bowl, combine the cooked beef and onions, cooked rice, French onion soup, sour cream, Worcestershire sauce, garlic powder, salt, and black pepper. Stir until well combined.
  5. Spread the beef and rice mixture evenly in the prepared baking dish. Sprinkle Swiss cheese and cheddar cheese evenly over the top.
  6. Bake for 15-18 minutes, until the cheese is bubbly and the edges are golden. For a crispier top, broil for 2-3 minutes, watching closely.
  7. Let the casserole cool for 5 minutes, then garnish with chopped fresh parsley. Serve hot.

Notes

For best flavor, don’t rush caramelizing the onions—let them get deeply golden. Use day-old rice to prevent a mushy casserole. Taste and adjust seasoning before baking. For a gluten-free version, use gluten-free French onion soup. You can substitute ground turkey or chicken for beef, and swap cheeses as desired. Let the casserole rest 5 minutes before serving for easier slicing.

Nutrition

Keywords: french onion casserole, ground beef casserole, rice casserole, easy dinner, comfort food, weeknight meal, cheesy casserole, one pan meal

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