Preheat your oven to 350°F (175°C) and lightly spray a 9 x 13-inch baking pan with non-stick spray.

Prepare the Rice-A-Roni as directed on the package. Ensure the chicken is cooked before assembling the casserole. You can use a store-bought rotisserie chicken or make an easy crockpot chicken.

In a large bowl, whisk together the sour cream, cream of chicken soup, garlic powder, onion powder, salt, and pepper.

Add the cooked chicken and rice to the soup mixture, stirring well. Transfer the mixture to the prepared baking dish.

In a small bowl, melt the butter. Crush the Ritz crackers in their package, then mix the crumbs with the melted butter. Stir in the shredded cheddar cheese.

Spread the cracker topping evenly over the chicken casserole.

Bake the casserole for 25 minutes. For the last 2-3 minutes, switch the oven to broil to toast the cracker topping.

Serve and savor the creamy goodness!