I have no idea who Catherine is but I've made this soup many times thanks to her. I found the recipe here. I made a few modifications to the original recipe- less chicken breasts and no whole tomatoes.
2 quarts water
5 skinless, boneless chicken breast halves
1/2 teaspoon salt
1 teaspoon ground black pepper
1 teaspoon garlic powder
2 tablespoons dried parsley
1 tablespoon onion powder
3 cubes chicken bouillon
3 tablespoons olive oil
1 onion, chopped
3 cloves garlic, chopped
1 (16 ounce) jar chunky salsa
3 (14.5 ounce) cans peeled and diced tomatoes
1 (10.75 ounce) can condensed tomato soup
3 tablespoons chili powder
1 (15 ounce) can whole kernel corn, drained
2 (16 ounce) cans chili beans, undrained
1 (8 ounce) container sour cream
In a large pot over medium heat, combine water, chicken, salt, pepper, garlic powder, parsley, onion powder and bouillon cubes. Bring to a boil, then reduce heat and simmer 1 hour, or until chicken juices run clear. Remove chicken, reserve broth. Shred chicken.
In a large pot over medium heat, cook onion and garlic in olive oil until slightly browned. Stir in salsa, diced tomatoes, whole tomatoes, tomato soup, chili powder, corn, chili beans, sour cream, shredded chicken and 5 cups broth. Simmer 30 minutes.