Choose from products made with rice, corn, quinoa, potato, buckwheat, beans, soy or kelp. Look also for different pasta shapes, such as fettuccine, penne, shells, rotini, bow ties, ravioli and couscous. ... provide a similar amount of calories but significantly more protein. For gluten-free noodles that are nearly calorie free, try shirataki or kelp noodles. Availability. Many grocery stores now carry gluten-free noodles.