Swiss Chicken Casserole

6 chicken breasts, boneless and skinless
6 slices (4 x 4-inch) Swill Cheese
1 can (10 3/4 ounces) cream of mushroom soup, undiluted
1/4 cup milk
2 cups herb stuffing mix
1/2 cup margarine or butter, melted

Spray Crockpot with cooking spray. Arrange chicken breasts in crockpot. Top with cheese, layering cheese if necessary. Combine soup and milk; stir well. Spoon over cheese; sprinkle with stuffing mix. Drizzle melted margarine over stuffing mix. Cook on Low 8-10 hours or on High 4-6 hours. Serves 6.