01 -
Preheat oven to 375°F (190°C). Coat a large baking dish with nonstick cooking spray.
02 -
Season the chicken breasts evenly with garlic powder, onion powder, black pepper, and salt; arrange in a single layer in the prepared baking dish.
03 -
Sprinkle uncooked long-grain white rice evenly over the chicken breasts.
04 -
In a mixing bowl, whisk together chicken broth, shredded sharp cheddar cheese, and sour cream until completely blended.
05 -
Pour the cheese mixture evenly over the rice and chicken. Cover the baking dish tightly with foil and bake for 40 to 45 minutes.
06 -
Remove foil and continue to bake for 10 to 15 minutes, or until the top is golden and the dish is bubbling.