"Matt Bolus’ $22 404 Burger is available at both 404 Kitchen and Gertie’s Bar. It’s a double patty smashburger topped with confit onions, bacon, provolone cheese, arugula, dijonaise, and bourbon truffle mushrooms. The bun, dubbed the ‘Nashville Potato Muffin,’ is an English muffin and potato bun hybrid." - Jackie Gutierrez-Jones, Delia Jo Ramsey