Creating Cheesy Hamburger Rice Casserole is straightforward with these easy steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Cook Ground Beef: In a skillet over medium heat, brown the ground beef. Drain excess fat.
3. Sauté Vegetables: Add diced onion, bell pepper, and garlic to the skillet. Sauté until softened, about 5 minutes.
4. Mix Ingredients: Stir in the cream of mushroom soup, Worcestershire sauce, paprika, and season with salt and pepper.
5. Add Rice and Broth: Add uncooked rice and beef broth to the skillet. Mix well to combine.
6. Transfer to Casserole Dish: Pour the mixture into a greased 9×13 inch casserole dish, spreading it evenly.
7. Add Vegetables: If using, sprinkle the frozen vegetables on top of the rice mixture.
8. Cover and Bake: Cover the dish with aluminum foil and bake for 30 minutes.
9. Add Cheese: Remove the foil. Sprinkle shredded cheddar cheese over the top, then return to the oven for an additional 15-20 minutes, until rice is tender and cheese is melted.
10. Cool and Serve: Allow the casserole to cool for 5-10 minutes before serving.

These steps will guide you in creating this incredible casserole effortlessly.