I finally found a great roast beef sandwich at Matt's! Give me the roast beef with giardiniera and mozzarella all day. Pretty large sandwich; definitely will leave you feeling satisfied. You can have the beef dipped in au jus or on the side. I had mine dipped, which made the bread a bit soggy. Would go on the side next time.
I guess after all the raving about the roast beef I need to try the hot dogs. It will be hard to ignore that sandwich though.