Most of the kids around our table this xmas trip had pizza and were all enjoying it although I don't know if its just mozzarella cheese. Its what most kids used on DDP so don't think it was too exotic for any kid. They are made to order(you can see the open kitchen) so I beleive you could request it.
Awesome thanks everyone! My niece is 12 and a really picky eater (PB&J, "good" chicken nuggets, cheese pizza, and the latest, believe it or not steak). So selecting some sit down restaurants for our trip in August has been a bit of a challenge.