Get “smashed” on National Hamburger Day! Burgers are definitely one of the most popular meals in America. Along with fries and a cold drink (or sweet shake), a juicy burger tastes even better! And one of the best places to enjoy all three is at Denver-born Smashbuger. The popular restaurant is celebrating National Hamburger Day with a big, juicy deal for burger fans!
Image: Smashburger
On May 28, 2026, Smashbuger is offering Any Single-Patty Smashburger for just $5.28 at participating locations.
Use promo code 528SINGLE at checkout via the restaurant’s site or app. If you’re dining in-restaurant, just be sure to mention the offer upon ordering.
Any premium add-ons are extra.
Best of all, there is no limit, so everyone in the family can enjoy a bargain burger. To keep costs to a minimum, just split an order of fries and stick with water instead of a fountain drink.
Or, better yet, take the burgers to go and enjoy your own sides and drinks at home!
In addition, you can maximize your savings by first taking advantage of Smashburger’s current gift card bonus offer through June 22, 2026 — buy a $25 gift card and get a $10 Smash Cash bonus.
There are 21 locations in Colorado.
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