The beef is topped with cheese and a splash of au jus, plus there's horseradish at the table. Roast beef sandwiches are a way of life in the Boston area, and Kelly's Roast Beef is one of the ...

It's just mozzarella, roast beef, and then that au jus sauce that they put on top. And I just, I think that's really what makes this sandwich one of a kind, is that each and every flavor in this ...

Famous Fourth Street’s roast beef comes au jus, so you can dip the mile-high sandwich (on rye!) into the gravy before you unhook your jaw to take a bite. The Dandelion, Rittenhouse Square Dive ...