Every answer below changes the board — not just the shopping list. Drop dairy and you get a meat-forward board that works, rather than the same board with holes in it.
Nothing here is properly acidic. Twelve people, two hours out, and every bite is rich. A cornichon or a pickled red onion in that empty section would reset the palate.
Two blues is one too many at this guest count — the Roquefort is already doing the job.
Grouped by aisle when you print it.
Times shift with your start time. Set a start time to re-anchor the whole list.