Preheat the oven to 350°F (175°C).

In a skillet, brown the ground beef over medium heat. Drain excess fat.

Add the diced onion and minced garlic to the skillet, cooking until the onion is translucent.

In a large bowl, combine the cooked rice, cream of mushroom soup, milk or beef broth, 1 cup of cheddar cheese, paprika, salt, and pepper. Mix well.

Stir the beef mixture into the rice mixture until evenly combined.

Transfer the mixture to a greased casserole dish and top with the remaining cheddar cheese.

Bake in the preheated oven for 30 minutes or until bubbly and cheese is melted.

Garnish with chopped parsley, if desired, before serving.