I've done this also with marinated artichokes and added regular mozzarella. I would love to add parmesan cheese, I think it would be a tangy addition. The tomatoes didn't look good so I used a sliced fresh red pepper. It is so good.
Excellent antipasto! I used the grape tomatoes and did substitute the roasted red peppers with marinated artichokes, only because DH doesn't like roasted red peppers. Will make this again!