At the top of our list is liquid egg whites. A staple for any serious dieter. Egg whites can be used in omeletes, kugels, muffins, quiches, crepes, blended soups, ground chicken patties, or as a filler to almost any food. Pure protein, and low in calories, egg whites are a must. The added convenience of not having to crack the egg and throw away the yolk is a plus.