Place chicken in slow cooker and sprinkle the taco seasoning on top of them. Then spoon the salsa over the chicken. Cook on high for 4 hours or low for 6-8. Shred meat and leave in crock pot on low until ready to serve.
To make your "Mexican Haystack" place your chicken on top of rice.
Then add your corn, black beans, olives, red peppers, cheese and sour cream.