Spread the pizza sauce on the bottom of the dough, leaving some space at the edges. Top with the mozzarella cheese, prosciutto, roasted red peppers, havarti cheese, half of the parmesan cheese, red pepper flakes, basil leaves, salt and pepper evenly over dough. Roll up the dough, starting at one of the shorter sides, but without rolling too tightly. Seal all ends well, pinching the dough together.