I got this off pinterest and its really good and very simple.
1 2lb bag of frozen chicken (breasts, tenderloins, or cutlets)
1 block cream cheese (anything but fat free)
1 can rotel
1 can black beans, rinsed and drained
1 can corn, drained
In crockpot, put chicken in first, cream cheese next and dump everything else on top. Turn on low 6-8 hours. Shred chicken once done. Last half hour before serving turn off the crockpot so the sauce thickens a bit (if you want thicker sauce). Serve over rice.