Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C).
Step 2: Prepare the Broccoli
If using fresh broccoli, steam the florets until just tender (about 3-4 minutes). If using frozen, thaw and drain excess water.
Step 3: Combine the Ingredients
In a large mixing bowl, combine the cooked rice, shredded chicken, broccoli, cream of chicken soup, sour cream, shredded cheddar cheese, milk, garlic powder, onion powder, salt, pepper, and paprika. Mix well until all ingredients are evenly incorporated.
Step 4: Transfer to Baking Dish
Pour the mixture into a greased 9x13-inch baking dish. Spread it out evenly. Sprinkle additional shredded cheddar cheese on top for extra cheesiness.
Step 5: Bake the Casserole
Bake in the preheated oven for 25-30 minutes, or until the casserole is bubbly and the cheese is melted and lightly golden.
Step 6: Serve and Garnish
Remove from the oven and let it cool for a few minutes before serving. Garnish with fresh parsley if desired.