There are few school canteens here, and they are usually found in dormitories that provide meals. However, people in China are not used to eating the canteen here. It tastes bad and expensive. You'd better do it yourself. Tesco is still abundant, and it is more convenient to buy things. There is a supermarket in China. You can buy everything you want and can't think of. Except for the special local secret system, I haven't found anything that I can't buy. Bring your own cookbook or learn something online. Cooking is not difficult.