The Bunless ShackBurger is pure genius — all the juicy, savory goodness of the classic, wrapped in crisp lettuce for a low-carb punch. It’s melt-in-your-mouth bliss without the bun, perfect for keeping things light yet satisfying. You can order this on Shake Shack’s Secret Menu — https://shakeshackusa.com/secret-menu/ https://shakeshackusa.com/