First, I put a drizzle of olive oil in a hot frying pan. I saute a sliced onion, when they are almost done, I add 3 or 4 sliced mushrooms. When they are light brown and tender, remove the onion mixture from the pan and keep warm.
Put the steaks into the frying pan. While they are cooking, pull the steaks apart, into small pieces. When the steak is done divide it into portions. Put the cheese on top to melt.
Put the onion mixture on a steak roll, and top with the steak and cheese. You can also put your cheesesteak on a whole wheat wrap, which is the way I prefer it. I served it with cole slaw and a slice of tomato on the side. Enjoy!!