Call it a pumpkin or a squash, calabaza is just another member of the family. With its bright, orange flesh and tan-striped exterior, the calabaza can be cooked just like other hard squashes. Used primarily in Spanish cooking for purees, soups, and other hearty dishes, calabaza has become very popular in many markets. Choose relatively heavy squash with stem intact. Keep in a well ventilated area if whole. Wrap and refrigerate cut pieces. Store at 55°F.