The term 'Side Dish at a Barbecue' can be summarized by two crossword solutions: succotash (9 letters) and slaw (4 letters). Succotash is a dish traditionally made from corn, lima beans, and other vegetables, often served as a side dish. Slaw is a salad made from shredded cabbage and other vegetables, usually dressed with mayonnaise or a vinaigrette. Both dishes are popular accompaniments to barbecued meats.