Self-Service Mongolian Barbecue \ Cook-It-Yourself-Stir-Fry North Monroe Lakeshore LIONS Club membership drive at my house. 50-in 3/8″ thick carbon steel cooking surface – slightly concaved into the middle to contain any liquid. 4 ‘+1 ‘ can cook at the same time. The ‘+1’ has the most important job helping to move the food along before it gets burnt. And he/she uses a long spatula to reach the other side. Freshly cut meat and vegetables… one can piledup their plate, but by the time it’s cooked, it’s just a few bites. So they go back for more, and the line goes on and on and on. No long hours in the kitchen, especially if we have to feed 60+ people. No clean-up either. And my dog loved these events – anything on the floor was his!