I found this gem over at skinnytaste. It's healthy and doesn't get much easier. It is definitely going to be a regular meal at our house. The husband was a big fan!
1 onion, chopped
1 16-oz can black beans
1 16-oz can kidney beans
1 8-oz can tomato sauce
10 oz package frozen corn kernels
2 14.5-oz cans diced tomatoes w/chilies
1 packet taco seasoning
1 tbsp cumin
1 tbsp chili powder
24 oz (3-4) boneless skinless chicken breasts
chili peppers, chopped (optional)
1/4 cup chopped fresh cilantro
Combine beans, onion, chili peppers, corn, tomato sauce, cumin, chili powder and taco seasoning in crock pot. Place chicken on top and cover. Cook on low for 10 hours or on high for 6 hours. Half hour before serving, remove chicken and shred. Return chicken to crock pot and stir in. Serve over rice and top with fresh cilantro, cheese, sour cream etc.