National Cheeseburger Day is THIS Saturday, September 18,2021! McDonald's is celebrating by giving you the chance to get a Double Cheeseburger for only 50 cents! This special deal will be available only on the McDonald's app! Inside the double cheeseburger you can enjoy 2 beef patties, pickles, onions, ketchup, mustard, cheese, and of course the bun! French fries and a drink will not be included in this special! How do you plan on celebrating National Cheeseburger Day?!