The Comeback You Craved – Whataburger’s Mushroom Swiss Burger Returns!
Mushroom Lovers, This One’s for You – the Fan-Favorite Is Back for a Limited Time as Part Of Whataburger’s 75th Anniversary Celebration! San Antonio, TX (RestaurantNews.com) Some things in life are just too good to stay gone forever. After a three-year hiatus and overwhelming fan demand, including a petition with more than 7,200 signatures, the…