Split your buns if they aren't split and cover one side with cheese then place it on a baking sheet
Place them under the broiler in your oven just long enough for the cheese to melt
Once the cheese is melted layer on top of the cheese Roast beef , a little Gravy, 4-5 Shrimp. then desired amount of gravy.
On the plain side of the bun spread desired amount of jalapeno mayo
PLace the desired amount of lettuce and fold it together