Melt the suet in a sukiyaki pan if you have one (if not, use a cast–iron pan, wok, or frying pan). Add all the vegetables, tofu, shirataki, and wheat gluten if you are using it. Then add a little of each of the sauce ingredients to suit your own taste. The sauce should cover the bottom of the pan but not be excessive. Top with strips of beef and cook briefly, covered, over high to medium heat. After a few minutes remove the lid. As soon as the beef begins to change color, it is ready to eat.