Slow Cooker Chicken and Mushroom Sauce

3-4 chicken breast cut in half
2 cans Cream of Mushroom Healthy Request
1/4 cup Sherry cooking wine
1/4 cup skim milk (you can add more 1 Tbsp at a time if the sauce is too thick as it cooks)
1-2 tsp pepper  (more to taste when serving, I use less while cooking, so my youngest will eat it and add more when serving)
1/2 onion diced
1 small package sliced mushrooms rinsed and diced
Prepared Barley or Brown Rice

Spray slow cooker with cooking spray, cook chicken breast on high for about 3 hours, remove chicken and drain slow cooker, spray slow cooker with cooking spray again.

(Optional- I like to place onions in a covered container for about 30-45 seconds in the microwave to slightly soften them before adding them to the slow cooker)

Add remaining ingredients, stir well, place chicken back to the slow cooker, and cook on low for 3-4 hours

Serve over rice or barely