After initial bake, allow pastry to cool slightly, then press down the middle to flatten it.
Layer the fillings: start with 6 slices mozzarella, then the meats. Spoon mayo mixture over the meat and spread all over. Sprinkle on red peppers, red onion, and arugula.
Place second sheet of pastry dough on top and use a fork to crimp the edges together.
Brush top of dough with the beaten eggs.
Bake for 20-25 or until top is golden brown.
Serve warm or chilled.
