Boneless, skinless chicken breasts, equal parts HOT enchilada sauce and cream of chicken (condensed) soup. Add a can or 2 of chopped green chili. I do this with a whole big Costco bag of chicken and 2 cans each.
I shred up the chicken and bag some w/barely any sauce to use for quesadillas and bag some with a lot of sauce for wet burritos. I keep this in my freezer all the time.