Preheat Oven
Preheat oven to 375°F (190°C). Lightly grease a baking dish.
Cook Ground Beef
Heat olive oil in a skillet over medium heat. Add ground beef and cook until browned. Drain excess fat.
Add Aromatics
Stir in diced onion and garlic. Cook for 2–3 minutes until softened.
Assemble Casserole
In the baking dish, combine uncooked rice, beef broth, cream of mushroom soup, paprika, salt, and pepper. Stir well.
Add Beef
Spread the cooked beef mixture evenly over the rice mixture.
Bake Covered
Cover tightly with foil and bake for 35 minutes.
Add Cheese & Finish
Remove foil, sprinkle cheddar and mozzarella evenly on top, and bake uncovered for 10 minutes, until cheese is melted and bubbly.
Rest & Serve
Let rest for 5 minutes before serving. Garnish with parsley if desired.