I have to disagree with the peanut butter and casein shake suggestions. Peanut butter is high in calories, something you don't need at night while dieting, and shakes will rarely do much in the way of filling you up due to the fact that they are predigested. A huge plate of egg whites is low in calories, and will keep your body in an anabolic state for a long time. Sprinkle some milled flaxseed on the eggs, the fiber will expand in your stomach, and drink a big glass of water. You will be full, and not have damaged your diet..