Add the chopped onion with a small amount of olive oil and sautee in crock pot for 2-3 minutes.
Add the chicken and seasoning. Por 1/4 cup water over.
Add the beans, green chili's, diced tomatoes and tomato sauce.
Cook on high for 2 hours or on low for 4 hours.
Remove chicken and shred a part. Place back in pot.
Serve warm and top with cilantro.