Arby's is selling a fast-food staple it's never offered before
Typically there's nothing groundbreaking about a fast-food chain selling a hamburger. But Arby's has never sold one — until now. Better known for its roast beef, the chain is adding a hamburger to its menu for the first time in its nearly 60-year history. Arby's announced Monday it's adding the "Wagyu Steakhouse Burger," which costs $5.99, as a limited-time offering beginning Monday through July 31.