In a large mixing bowl, combine the cooked rice, shredded chicken, cream of chicken soup, French onion soup, sour cream, garlic powder, onion powder, salt, and black pepper. Mix until well combined.
Transfer the mixture into a greased 9×13-inch baking dish, pressing it down gently.
Sprinkle the shredded cheese and half of the French fried onions over the top.
Bake in the oven for 30 minutes until bubbly and the cheese has melted.
After 30 minutes, remove from the oven and sprinkle the remaining French fried onions on top; return to the oven for an additional 5 minutes or until golden brown.
Garnish with chopped parsley before serving.
Notes
For added flavor, consider using homemade soups or adding vegetables like peas or bell peppers.