Where to take group of 20 (mixed ages)

Hi there-we'll have a lot of family in town-includes 8 kids 10 & under, all the way to grandparents. 2 are vegetarian. I'd like to plan a dinner somewhere that's easy with kids, has fun atmosphere, and has a few vegetarian options. Please help! I'd like to be able to make a reservation. So far I've Come up with hula hut, central market if there's live music (but may be too complicated w ordering process) . Where else is fun, has good food, and easy with kiddos?