Let loaf of bread rise. Spread dough out on cookie sheet. Baste with part of one egg. Layer pepperoni over rectangular dough. Layer provolone slices on top of pepperoni and then layer the Mozzarella cheese. Sprinkle with Parmesan cheese.
Roll up the dough jelly roll style, sealing it. Secure the ends by squeezing the dough so the filling won't ooze out. Baste with rest of egg. Bake 350 degrees for 20-25 minutes or until golden brown.
Serves 12.