Prepare the Oven: Start by preheating your oven to 350°F (175°C) to ensure it's ready for baking.
Cook the Beef: In a large skillet set over medium heat, add the ground beef. Cook it until it's browned and no longer pink, making sure to break it apart with a spatula as it cooks. Once done, carefully drain excess fat from the skillet to ensure the dish isn't greasy.
Sauté Aromatics: To the skillet with the cooked beef, add the diced onion and minced garlic. Sauté for about 5 minutes, stirring occasionally, until the onion turns translucent and the garlic is fragrant.
Toast the Rice: Stir in the uncooked rice into the skillet and let it cook with the beef mixture for an additional 2 minutes. This will help to lightly toast the rice, enhancing its flavor.
Combine Ingredients: Pour in the beef broth along with the drained diced tomatoes and frozen mixed vegetables. Add the paprika, Italian seasoning, and season generously with salt and pepper. Stir everything together until well combined.
Simmer to Cook the Rice: Bring the mixture to a gentle simmer. Cover the skillet with a lid, lowering the heat slightly, and let it cook for about 15 minutes or until the rice is tender and has absorbed most of the liquid.
Incorporate Cheese: Once the rice is cooked, remove the skillet from the heat. Stir in 1.5 cups of the shredded cheddar cheese to the mixture, allowing it to melt and blend thoroughly.
Transfer to Baking Dish: Carefully pour the cheese and beef mixture into a greased 9x13 inch baking dish, spreading it evenly. Sprinkle the remaining 0.5 cup of shredded cheddar cheese over the top for that deliciously bubbly finish.
Bake: Place the baking dish in your preheated oven and bake for 20-25 minutes, or until the top is golden and the cheese is melted and bubbly.
Serve: Once baked, remove the casserole from the oven and give it about 5 minutes to cool slightly. Before serving, garnish with freshly chopped parsley for a pop of color and flavor.
Notes
Serve with a crisp green salad for a well-rounded meal.