Slow Cooker Chicken Chili

Ingredients
1 onion (chopped)
16 ounces black beans
16 ounces kidney beans
8 ounces tomato sauce
10 ounces corn (drianed)
30 ounces diced tomatoes with chilies
1 package reduced-sodium taco seasoning
1 tablespoon chili powder
24 ounces 99% fat free chicken breasts
Instructions

Combine all ingredients (except chicken) in a slow cooker and mix well.

Place chicken breasts on the top, and press it down slightly.

Cook on low for 6-7 hours.

Remove chicken breasts and shred. Return chicken to slow cooker, and mix everything together.