In a 5-quart or larger slow cooker, add the water, taco mix, rotel, pinto beans, green chiles, olives and corn. Stir. Add chicken breasts into this mixture.
Cover and cook on LOW for 8 hours.
Shred the chicken with 2 forks.
Serve with desired toppings.
Note- to make this recipe "healthier", use Mrs. Dash no salt taco mix, top with baked tortilla chips, weight watchers shredded cheese, and fat free sour cream.