Chuck, Short Ribs and Oxtail are my preferred choices for chile Colorado. The cheaper cuts of meat come from muscles that work more and would generally be tougher. But that also means more collagen-rich connective tissue. This connective tissue dissolves into the meat, adding to the body and richness to the stew that more expensive cuts of meat won’t give you. It also keeps the meat tender and moist which is exactly what you want with stew meat.