Yams or sweet potatoes and other tropical root vegetables distinguish this stew from others. Though this recipe calls for beef, boneless pork is also authentic. Sancocho is often accompanied by "casabe" (cassava cakes), yucca meal cakes, or "panecicos" (yucca meal rolls). Corn bread is a good substitute for these. This recipe is from Panama, and comes from Better Homes and Gardens. Our family really enjoyed this.