We are having a buffet dinner for our reception. But I am also having a separate spot where I'm setting up mac & cheese & chicken nuggets for children. I realize some adults will go for this as well. Is there some way to ask on the RSVP card for a number of children who would prefer the kids option? I would like to get some sort of idea how much to have. I know some kids will eat off the regular buffet. I don't really want to order enough mac & cheese for 300 and be eating it for months after. Any suggestions? TIA.