snacks or a potluck meal? Do you really want to whip something up, or just bring something very cool and convenient? Side dishes are a good bet unless you are assigned a main meal. Thinking of what goes with barbecue usually works.
One thing I like about Burning Man is that you don't have to hide the fact that something came in a can. I recently found out that the tofu envelopes for inarizushi come in a can. I've been wondering for a long time how to make it... doh! make rice, open can, assemble, chill, pray to see the tuna guys.
I do a last toy food trip at TJs the week before I leave. These are items just for pure fun and enjoyment, potluck, snack treats. I have the staples, and can feed people nicely if needed, but bringing out something I haven't tried yet is a treat for me as well.
I'm thinking that since you are a connoisseur of beverages, you will know perfectly paired food items, and can pull one out when it is least expected. This is the magic and joy of it. If somebody winsomely mentions, 'wouldn't it be great it we had some _____ to go with this?" Then you snap your fingers, run to your trailer and come back with it. Smiles all around.