Back when I was a teen, the town of Garrett Hill in P.A., had a small hole in the wall called Toni's. That was the place where I learned the routine to make a great Cheesesteak. I watched Toni slice the beef on an electric slicer. He would make ten very thin pieces of beef and put them on wax paper. He would do this till he had a stack about 10 inches high. He would wrap that and start the process all over again. I always watched the process many times over the years. I watched the cooking sequence, as everything was all out in the open. The area of the grill was given a good dose of olive oil. The chopped onions were put on the grill first and allowed to cook a minute or two, then the beef was added next to the onions. At the very end the onions and beef were stirred together. He would again add the roll to the flattop, inside down then, after a minute or two the beef, cheese, and the onions were put on the warmed roll, wrapped in white paper and served to you to take home; or eat there at the counter. Their sandwiches beat any other restaurant by a mile. Here in Florida, I have never found any sandwich shop that makes a cheesesteak worth eating, anywhere in Florida. Ahhhh the memories.