The brand’s Double Classic Burger features two 100 percent certified Angus beef patties, two slices of American cheese, lettuce, tomato, onion, pickles Smash Sauce and ketchup on a classic bun.
Smashburger’s National Cheeseburger Day deal is valid at participating locations nationwide for one day only on September 18, 2021.
National Cheeseburger Day is celebrated annually on September 18.
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