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
cilantro
lime
sour cream
shredded cheese
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.