Get Free Steak ’n Shake Burger on May 28
Steak ’n Shake is celebrating National Hamburger Day on May 28 by giving away free Double Steakburgers for one day only. Customers can claim the free burger by wearing or showing an American flag item, like a shirt, hat, or pin, at participating locations.
The offer is valid in-store only and limited to one free burger per person. The Double Steakburger normally sells for around $6 depending on the location.
The promotion was announced on X.
