Zero menu, also known as the à la carte menu, is a catering business to provide consumers with a random order for consumption of dishes, beverages, sales list, zero menu is the most basic catering business menu, but also catering consumers and business employees have contact with the most menu. Zero menu is characterized by the menu of dishes listed on the more comprehensive, richer varieties, and according to the corresponding characteristics of the order, and the order is flexible and changeable.