Whether you are vegetarian or just avoiding meat for more healthy eating, you don't have to do without scrumptious mexican food. These low-fat, high-fiber vegetarian burritos from moosewood restaurant low-fat favorites, are filled with a puree of sweet potatoes, black beans, onions, chilies, garlic, and cilantro. They are rolled up like enchiladas and baked. Serve topped with homemade or jarred salsa.