The menu at Baia will be the normal full menu at diners own expense.
Most groups of this size do have a set menu and this is determined by the tour operator K&D and the restaurant, it is part of the package. I am sure the winery and the Blue Marlin will have set menus. It is too confusing to try to have 36 people agree or even make menu requests. I am sure they will make a good selection that they know from experience suits most Americans tastes.