Grease a 9 x 13 inch pan. Cover bottom with boneless, skinned chicken breasts (approximately 4 to 5 uncooked chicken breasts). Place a layer of Swiss or Mozzarella cheese on top of chicken. Pour two cans Campbell's chickeny-mushroom soup over cheese. (You may mix 1/4 cup white wine with the soup if you wish). Top casserole with bag of Pepperidge Farm dressing or Stove Top Stuffing made up per package directions (Stove Top needs two boxes while Pepperidge Farm is just one bag). Pour 1/4 to 1/3 cup melted butter over dressing (this may be eliminated if you want to). Bake 1 hour at 375 degrees. (Cover with foil for 45 minutes and uncover for last 15 minutes.