Discover the ultimate comfort food with this French Onion Beef Casserole recipe! Combining savory ground beef with sweet caramelized onions and a rich blend of cheeses, this hearty dish is perfect for family gatherings or cozy dinners at home. Learn the secrets to achieving perfectly caramelized onions and the best layering techniques to enhance flavor. Click through for step-by-step instructions and bring warmth to your table with this delicious casserole!
1 lb (450g) ground beef
2 large onions, thinly sliced
4 cloves garlic, minced
2 cups beef broth (low sodium)
1 tablespoon Worcestershire sauce
1 teaspoon dried thyme
1 teaspoon fresh rosemary, chopped
1 cup long-grain rice
1 cup shredded Gruyère cheese
1 cup shredded mozzarella cheese
2 tablespoons olive oil
Salt and pepper to taste
Fresh parsley, chopped (for garnish)