Awesome Philly Steak and Cheese Stromboli Recipe

Chop shaved roast beef into small pieces. Melt 3 tablespoons butter in large skillet and add sliced onions, salt and pepper. Saute for about 5 minutes, just as they start to turn translucent. Add green pepper and saute for another 4-5 minutes. Add mushrooms and continue to saute for another 3-4 minutes, then take off heat and set aside. Lay pizza crust dough out on floured parchment paper that has been placed on a cookie sheet and roll out so it is about 1/4 inch thick all the way around and rectangular in shape. Layer cheese on pizza crust, leaving about two inches from each side. Layer roast beef leaving same amount of space on each side. Layer onions, peppers, and mushrooms onto roast beef, again leaving two inches on each side. Season with garlic powder, salt and pepper to taste. Starting from the long edge, start to roll the dough tightly until all the toppings are enclosed in the middle, and seal the seam along the bottom and on the ends by pinching this dough together. Put the egg yolk with 1 teaspoon water in a small dish and whisk very well to incorporate. Brush the top of the Stromboli with the egg mixture. Cut about three slits on the top to let the steam escape. Bake in a 350 degree oven for 30 minutes or until golden brown. Add Mozzarella cheese to the top of the Stromboli the last fifteen minutes of baking time. Remove from oven. Let stand for 10 minutes before cutting to keep the cheese from running out of the Stromboli. Yield: serves 8 Notes: You may want to substitute "Cheez Whiz" for the provolone cheese. Many people like the "Cheez Whiz" instead of the provolone. You may also substitute American cheese for either of the cheeses.