Follow these simple steps to create your Cheesy Hamburger Rice Casserole:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Cook Beef: In a large skillet over medium heat, brown the ground beef until fully cooked. Drain excess fat.
3. Sauté Onions: Add chopped onions and cook until soft, approximately 3-5 minutes.
4. Combine Ingredients: Stir in the uncooked rice, beef broth, cream of mushroom soup, and frozen vegetables. Mix well until everything is incorporated.
5. Season: Add garlic powder, onion powder, paprika, salt, and pepper. Stir to combine evenly.
6. Transfer Mixture: Pour the mixture into a greased 9×13 inch baking dish.
7. Top with Cheese: Evenly sprinkle the shredded cheddar cheese on top of the casserole.
8. Bake: Place the dish in the preheated oven and bake for 30-35 minutes, or until the rice is tender and the cheese is bubbly.
9. Check Doneness: Ensure there’s no excess liquid. If the rice absorbs all the broth, it’s ready!
10. Rest: Remove from the oven and let it rest for 5 minutes before serving.

By following these straightforward steps, you’ll be able to create a delicious and cheesy casserole that everyone is sure to love.