Day doesn't matter to me. I know several people have said Tuesday works well, and it keeps others from coming. No perfect answer there.
Like we talked about after, it's hard to have a family meeting somewhere that you can't get chicken fingers and fries. Y'all mentioned it, but should we ask if they mind if you brought in food? If we have a good crowd and they're making their money off fancy beers, they might be ok with it.