Some things scream Southern cuisine without even trying. Gumbo, jambalaya, and poboys all let you know which region you're driving through if your GPS is broken and your sense of direction sucks. The Roast Beef Poboy is at the top of that list. The Roast Beef Poboy also has the distinction of being the first actual poboy. The two main versions of the Roast Beef Poboy you'll see around both contain a dark, beefy gravy. The difference lies in the meat. Some places serve the poboy with sliced, deli-style roast beef. While this version is still delicious, in my opinion, it takes a backseat to the number one way to…