Lightly grease a 6 quart (or larger) slow cooker with cooking spray. Rub chicken breasts with olive oil and add to the bottom of the slow cooker, Add all remaining ingredients and give them a stir.
Cook on low 6-8 hours or on high 3-4 hours (checking early, thin chicken breasts will cook quicker).
When chicken is tender, remove to a cutting board to shred and return to slow cooker. Cook an additional 20 minutes on LOW.
If desired, add additional water/chicken broth for a less "chunky" chili. Taste and add hot sauce, salt/pepper to taste.
Best garnished with cheese, green onions, sour cream, chips and bacon!
