Swiss Chicken Casserole

6 chicken breasts, boneless and skinless

6 slices swiss cheese

1 can cream of mushroom soup, undiluted

¼ C milk

2 C herbed stuffing mix

½ C melted margarine

Spray crock pot with cooking spray. Arrange chicken on bottom. Top with cheese. Combine soup and milk. Spoon soup mixture over cheese. Sprinkle stuffing mix on top. Drizzle melted butter over stuffing. Cook on low 8-10 hours or on high 4-6 hours.