Arby's limited-time menu has recently grown by four new sandwiches, all of which are currently available nationwide. Seemingly taking a page out of Popeyes' book, the chain has grown its already strong fish sandwich category with an additional spicy offering. Plus, a beloved classic carrying seven ounces of corned beef has also made a return (or has it?). 1 Crispy Fish Sandwich arby's crispy fish sandwich Courtesy of Arby's The classic Arby's offering during Lenten season, this sandwich is a must as soon as spring rolls around. It's made with a crispy filet of wild-caught Alaskan Pollock, tartar sauce, and...