Put frozen chicken in bottom of crockpot. Add other ingredients except tortillas on top of chicken. Cover and cook in crock pot on low for 6-8 hours.
Take chicken out and shred with two forks, return to crock pot and stir well. Brown tortilla triangles in non stick saute pan (no oil or cooking spray required). Serve with soup, along with cheddar cheese and sour cream (optional).
Freezer Directions:
Put frozen boneless, skinless chicken breats into a quart size freezer bag, squeeze out air, seal and set aside. Open all canned ingredients (undrained) and put in a gallon-sized freezer bag. Squeeze out air, seal, and set aside. Put taco seasoning into a sandwich size zipper bag. Using kitchen shears, cut the tortillas into small triangles and place into a sandwich size zipper bag. Into a separate gallon-sized freezer bag, place chicken, bean & vegetable mixture, tortillas, and taco seasoning bags. Label and freeze.