Easy Chicken and Stuffing Dinner Bake

1 pkg. (6 oz.) Stuffing Mix for Chicken

1-1/2 cups hot water

1/4 cup (1/2 stick) butter or margarine,

cut up4 boneless skinless chicken breast halves (about 1-1/4 lb.)

1 can (10-3/4 oz.) condensed cream of mushroom soup

1/3 cup Sour Cream

Mix contents of vegetable/seasoning packet, hot water and butter in large bowl until butter is melted. Stir in stuffing crumbs just to moisten. Let stand 5 minutes. Place chicken in 12x8-inch baking dish. Mix soup and sour cream; pour over chicken. Top with stuffing. Bake at 375 F for 35 minutes or until chicken is cooked through. Serves 4.