I always over-order when I call in for pizza delivery, because I love having leftover pizza. Because there's so much flavor packed into the sauce, cheese, and whatever toppings you've ordered, pizza adds flavor to salads, cocktails, and can even act as the base to a quiche. Press it into a waffle iron to make a pizza panini, cut it into triangles and make the best Bloody Mary ever, or use it as the base for a lively quiche.