Crockpot Parmesan Chicken

2 cans (10.25 oz each) cream of mushroom soup, undiluted
1 1/2 cups milk
1 cup chicken broth
1 pkg. onion soup mix
3 chicken breasts
3 Tbsp. butter
salt to taste
black pepper to taste
Grated Parmesan Cheese

Mix cream of mushroom soup, milk, chicken broth and onion soup mix in a small mixing bowl. Spray crockpot with cooking spray. Lay chicken breasts in the crockpot. Place one tablespoon of butter on each chicken breast. Pour soup mixture over chicken breasts. Salt and pepper to taste. Sprinkle with grated Parmesan cheese. Cook on Low 8-10 hours or on High 4-6 hours.