Preheat your oven to 375°F (190°C).
Prepare the rice: In a large baking dish, spread out the uncooked rice evenly on the bottom.
Sauté the onions: In a medium skillet, sauté the chopped onions over medium heat for about 3-4 minutes until they’re soft and translucent.
Add the soup: Pour the golden mushroom soup into the skillet with the onions and stir to combine.
Season: Add pepper to taste, then pour in 2 cups of water. Stir until well mixed.
Arrange the chicken: Lay the chicken thighs on top of the rice mixture in the baking dish, making sure they are evenly spaced.
Bake: Cover the dish with foil and bake for about 40-45 minutes, or until the chicken is fully cooked and the rice is tender.
Serve: Once the chicken is done, remove the foil and let it rest for a few minutes before serving. Enjoy your flavorful golden mushroom soup chicken!