The holidays usually mean potatoes loaded with cream, cookies covered in icing, meats laden with rich sauces, and all the sugary cocktails you can imagine - but they don't have to. When you want to keep your belt from needing a few extra notches come midnight, try one of these vegan, Paleo, gluten-free, or low-cal mains, sides, and desserts. Your friends and family (and Santa) will thank you.