Preheat the Oven: Set your oven to 350°F (175°C).

Prepare the Baking Dish: Grease a large 9×13-inch baking dish or casserole dish to prevent sticking.

Layer the Ingredients: Spread the uncooked rice evenly over the bottom of the dish. Arrange the chicken breasts over the rice.

Mix the Soups and Broth: In a mixing bowl, whisk together the cream of mushroom soup, cream of chicken soup, and chicken broth until well blended. Pour this mixture evenly over the chicken and rice in the baking dish.

Add the Onion Soup Mix: Sprinkle the onion soup mix over the top for extra flavor.

Season and Cover: Lightly season with salt and pepper. Cover the dish tightly with aluminum foil.

Bake and Forget: Place the covered dish in the oven and bake for about 1 hour and 30 minutes, or until the rice is tender and the chicken is cooked through.

Serve and Enjoy: Carefully remove the foil (watch out for steam!) and serve the chicken and rice hot.