Creating this Ground Beef & Rice Casserole can be straightforward if you follow these step-by-step instructions:

1. Preheat Oven: Preheat your oven to 375°F (190°C).
2. Brown the Meat: In a large skillet over medium heat, cook the ground beef until browned. Drain excess fat if necessary.
3. Cook Vegetables: Add the chopped onion, bell pepper, and minced garlic to the skillet. Sauté until the vegetables are softened, about 5 minutes.
4. Mix in Ingredients: Stir in the drained diced tomatoes, black beans, and corn. Mix well to combine.
5. Add Seasoning: Pour in the beef broth, Worcestershire sauce, paprika, cumin, salt, and pepper. Bring the mixture to a simmer.
6. Add Rice: Once simmering, stir in the rice. Cover and reduce the heat, allowing to cook for about 5 minutes.
7. Transfer to Baking Dish: Pour the mixture into a greased 9×13 inch baking dish. Spread evenly.
8. Bake: Cover the baking dish with aluminum foil and bake in the preheated oven for 30 minutes.
9. Add Cheese: After 30 minutes, remove the foil, sprinkle shredded cheddar cheese on top (if using), and bake uncovered for an additional 10-15 minutes, or until the rice is tender and the cheese is bubbly.
10. Garnish and Serve: Remove from the oven, garnish with freshly chopped parsley, and let it cool for a few minutes before serving.

Following these steps ensures a flavorful and satisfying Ground Beef & Rice Casserole every time.