I kinda made this up based on a few recipes I'd seen elsewhere, and it came out really good!
28 ounces diced tomatoes
1 small can green chile
3 chicken breasts
1 red onion
1 bell pepper
1 box chicken broth
Cumin, cayenne, salt and pepper
Dice onion and bell pepper. Combine all ingredients except cilantro, lime sour cream, and shredded cheese in crock pot. Cook on high 7 hours, then shred chicken breasts using two forks. Add remaining ingredients and serve.
Would also be good over black beans or with baked strips of whole wheat tortilla in phase 2.