1. Preheat oven to 350º. Stir together rice, chicken broth, buttermilk, wine, mushrooms, and 1/2 tsp. salt. Spoon rice mixture into a lightly greased 13- x 9-inch baking dish. Sprinkle chicken with pepper and remaining 1 1/2 tsp. salt. Place chicken on top of rice mixture.
2. Bake, covered, at 350º for 1 1/2 hours or until chicken is done. Sprinkle with parsley just before serving.
*1/2 cup chicken broth may be substituted.