|Sep 18, 2021||National Cheeseburger Day 2021||USA|
|Sep 18, 2022||National Cheeseburger Day 2022||USA|
Significance: A hamburger topped with cheese is a cheeseburger. It can include many variations. Usually the cheese is added early so it can melt on the meat. A cheeseburger may have more than one hamburger patty and more than one slice of cheese.