National Hamburger Day is celebrated annually on May 28th in the United States. This day honors the beloved hamburger, a popular food item made of a ground meat patty, usually beef, served in a sliced bun. Many people enjoy customizing their burgers with various toppings, such as lettuce, tomato, cheese, and condiments like ketchup and mustard. On National Hamburger Day, restaurants and burger joints often offer special deals and promotions to attract customers. Food enthusiasts may also take this opportunity to try new recipes or visit local eateries to sample different styles of hamburgers, celebrating this iconic American dish.