In a bowl mix together the chicken, spinach, roasted peppers, pesto, bread crumbs, salt and pepper.Form into 3 equal sized patties.Cook on a hot grill pan for about 5-6 mins per side, depending on thickness and temp of the grill (pan), or until the juices run clear. Top with fresh mozzarella and place a bowl overtop to allow the steam to melt the cheese.