A Whataburger “throwback” is back by popular demand. After a three-year break, fans can get their first bites of the mushroom ...

Whataburger’s Mushroom Swiss Burger is back! A toasted bun holds two beef patties, melted Swiss cheese, grilled mushrooms, and creamy sauce. Bold text highlights the burger’s return.

After three years of requests, the burger chain has finally listened to its fans and brought back Whataburger's Mushroom Swiss Burger ...

according to the Texas-based burger chain. It’s made with two beef patties topped with Swiss cheese, au jus sauce and “a generous layer” of grilled mushrooms, all served on a toasted bun, a ...