The meat is sautéed on a slightly oiled grill until cooked through. Salt and pepper are standard. Onions are often cooked on the same grill but are not married with the steak until it times to put them on the roll. There are different approaches when it comes to the cheese. Cheese slices can be placed on the bread before the steak, and softened by the heat of the meat. Or they can be put on the meat on the grill for a short time before placement on the roll. Cheez Whiz is melted and drizzled over the steak in the sandwich.