Birthday party food ideas??

I am throwing a 21st birthday party and I am so clueless about what types of food I should serve. I already have all of the appetizers planned out, so I just need help planning the main meal. It is not going to be a sit down dinenr. I was thinking of cooking meat, but what else would go with that? I was also thinking of a lunch meat tray, but again, what else would go with that? I am open to ANY and ALL suggestions. Please help!!