So what is a Steak-Um? It’s a flat frozen sheet of beef, it’s in the frozen aisle and yes it only says BEEF on the ingredients section. Is it ground, is it shaved? I have no idea, but when you open the box/plastic, there are between7-16 beef sheets depending on which box you get. The sheets are separated by parchment paper and the beef sheets are also 2 sheets of beef.What does this have to do with cheesesteaks? I have been cooking with these weird little beef sheets since I was about 8, and I know how to make them as close to a real Philly Cheesesteak as they can get. image source