Put chicken breasts in the crockpot, cover with salsa. Cook all day on low. The chicken shreds easily with a wooden spoon. Make burritos first night, then make soup. Add cans of black beans and diced tomatoes, frozen corn, and chicken broth. I add extra flavor with a teaspoon of adobo sauce*.
Serve topped with chips, cotina cheese and cilantro.
*adobo sauce is GREAT in chili, adds a little smoky flavor.