I need ideas! Want to help?

My (almost) 8 year old daughter is having some of her artwork shown at a gallery here in Santa Fe tomorrow evening. She is so thrilled about it and has been planning what to wear for days and days. There are other children from her art class showing stuff at the same time so each parent had to sign up to bring some food. There were categories for drinks, appetizers and main dishes. By the time I got to the sign-up sheet there were tons of people listed in the drinks and appetizers section, and barely any in the main dish so I felt like I had to put my name there. But now I have no idea what to bring. There are no tables and chairs so it has to be something easily eaten while standing and holding your plate, but not too appetizer-y (that's not really a word is it?). Any ideas? Thanks!