The Bunless ShackBurger is all about pure flavor — juicy beef, melty cheese, crisp lettuce, and fresh toppings, all without the bun. It’s a lighter, low-carb way to enjoy that classic ShackBurger taste without losing any of the deliciousness. Order this fresh twist from Shake Shack’s Secret Menu — https://shakeshackusa.com/secret-menu/ https://shakeshackusa.com/