Mexican Chicken Chili Soup

1 lb chicken breast fillet (4 fillets) 1 tablespoon olive oil 10 cups water 2 cups chicken stock 1/2 cup tomato sauce 1 potato , peeled & chopped 1 small[...]

3 chicken breasts , boneless, skinless, cut into small cubes 1 medium onion , chopped 2 stalks celery , chopped 2 (14 1/2 ounce) cans each fire roasted[...]

1 medium butternut squash, peeled and cut into 2 inch pieces 1 medium green bell pepper , cut into 1 inch pieces 4 boneless skinless chicken breasts , halved,[...]