I'd go for Seasonal "Festa Regionale" - enjoy!
Il fornio has GREAT food. That location has a nice seating area for your group. Parking is also pretty good in the garage next door.
I don't work there. Consider the restaurant "Havana". I organized a lunch there for 24 in December. Great service, good food. Il Fornaio was pretty bad when I was there for lunch last month. High prices for very . mediocre food
Thanks! Your answer is awaiting moderation.