The earliest hamburger is mainly composed of two small round breads with a beef patty. In addition to the traditional beef patties, the modern burger is also coated in the second layer of round bread with butter, mustard, ketchup, salad dressing, etc., and then sandwiched into tomato slices, onions, vegetables, sour cucumber and other foods. You can eat the main and non-staple food at the same time. This food is convenient to eat, delicious, and comprehensive. It has become one of the convenient staple foods in the world. The hamburger is high in calories and contains a lot of fat, which is not suitable for people who lose weight or have high blood pressure and high lipids.