This is an easy, make ahead soup for cold days. We usually keep it on low all day in the crock pot and serve with corn chips or corn bread. Also, to reduce the cheese a little, instead of putting it all in the soup, set some aside to use as garnish.
You will need at least 2 cups of broth, but we usually use more. Use your favorite method to poach the chicken breast, or use this recipe. Leftover broth can be saved for another recipe.