Preheat your oven to 350°F (175°C).
Shred your cooked chicken into bite-sized pieces.
Cook 2 cups of white rice according to the package instructions and set aside.
In a large mixing bowl, combine the cooked rice, shredded chicken, and frozen mixed vegetables. Add the cream of chicken soup and chicken broth, then sprinkle in the garlic powder, onion powder, black pepper, salt, and paprika. Stir until well combined.
Transfer the mixture into a greased 9x13 inch baking dish and spread it out evenly. Sprinkle the shredded cheddar cheese over the top.
Cover with aluminum foil and bake for 25 minutes. Remove the foil and bake for an additional 10-15 minutes until the cheese is bubbly and golden brown. Let it cool for 5 minutes before serving.