Let dough rise until doubled, according to package directions.
Punch down. Roll each loaf into a 15-in. x 12-in. rectangle. Arrange a fourth of the salami, ham, pepperoni and provolone cheese over each rectangle. Sprinkle each with a fourth of the mozzarella cheese, Romano cheese, garlic powder, oregano, parsley and pepper.
Roll up each rectangle jelly-roll style, beginning with a long side. Seal seams and ends. Place seam side down on two greased baking sheets. Brush with egg yolk.
Bake at 375° for 25-30 minutes or until golden brown. Let stand for 5 minutes before slicing. Serve warm. Refrigerate leftovers. Yield: 4 loaves (8 slices each).