Starchy side dishes are a common accompaniment to many meals. The term 'starchy side' can refer to a variety of dishes, including potatoes, RICE, and yams. TATER, with 5 letters, is another word for potato, a popular starchy side dish. RICE, with 4 letters, is a grain that is often boiled or steamed and served as a side dish. YAM, with 3 letters, is a root vegetable that is often boiled, mashed, or roasted and served as a side dish.