National Hamburger Day freebies and deals: Burger King, Whataburger, Shake Shack, more. See the full list
While some burger fans may opt for grilling their own hamburger now that the weather is finally warming up, those wishing for a restaurant version are in luck. Today, Thursday, May 28, fans can score special deals in honor of National Hamburger Day 2026. Here’s a roundup of offers: Shake Shack For those who like Shake Shack, the New York-based chain will offer a free classic ShackBurger with any purchase above $10. Customers can grab their free burger via the Shack app, online, or in...
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