Explanation: Ancient Roman predecessors to modern pizza used pomegranate, amongst other fruits. Of course, such proto-'pizzas' lacked tomatoes (as tomatoes come from the Americas) and probably lacked mozzarella (as mozzarella is first mentioned during the Renaissance).
Romans liked a cheese that was more similar to ricotta. So it would be like a ricotta pizza which sounds nice. I wonder if they had ricotta pie, that stuff is so good