Preheat oven to 350º F.
Prepare Rice-A-Roni according to package directions.
Add soup, sour cream, onion powder, garlic powder, poppy seeds, and chicken. Stir to combine.
Spread rice mixture in a lightly sprayed 9x13 pan.
Combine crushed Ritz crackers and melted butter. Sprinkle on top of the rice mixture.
Bake uncovered for 30 minutes.
