(luckymommyto2boys ~ Amy)
1 pkg. dry onion soup mix
1-1/2 cups milk
2 cans (10-3/4 oz each) Campbell's Condensed Cream of Mushroom
1 cup converted long-grain white rice
6 skinless, boneless chicken breast halves
6 tsp butter OR margarine
Pepper to taste
1/4 cup grated Parmesan cheese
Mix the dry onion soup, milk, mushroom soup, and rice in a medium bowl.
Put chicken in bottom of greased slow cooker. Place 1 tsp of butter on each breast. Pour soup mixture over all. Season with salt and pepper. Sprinkle with Parmesan cheese.
Cover and cook on low heat for 8-10 hours.