Cook Beef: In a skillet, brown ground beef and drain excess fat. Stir in ranch seasoning, garlic powder, and sweet corn.

Add Rice and Cheese: Add cooked rice (if using) and sour cream. Stir in shredded cheddar cheese and mix until melted and creamy.

Bake: Preheat oven to 375°F (190°C). Transfer mixture to a baking dish and bake for 20 minutes or until cheese is golden and bubbly.

Serve: Serve hot with a side of your choice!