Preheat oven to 375°F (190°C) and grease a 9x13 inch casserole dish.
In a large skillet over medium-high heat, sauté the ground beef and diced onion until the beef is fully browned and the onion is translucent.
Drain the rendered fat from the skillet then stir in the minced garlic, salt, pepper, oregano, and paprika, cooking for 60 seconds until fragrant.
In a large mixing bowl, combine the cooked beef mixture, uncooked rice, beef broth, condensed soup, and 1 cup of the shredded cheddar cheese.
Transfer the mixture into the prepared casserole dish and spread into an even layer.
Cover the dish tightly with aluminum foil and bake for 40 minutes or until the rice is tender.
Remove the foil, sprinkle the remaining 1 cup of cheddar cheese over the top, and return to the oven for 5 minutes until the cheese is melted and bubbling.
Remove from oven and allow the casserole to rest for 10 minutes to set before serving.