i'm going on a little 4 hour road trip and i'd like to prepare some good eats for our little adventure. i'd imagine i'd like to make something that could be eaten in 2-4 bites, not messy (ie. no crumbs), preferably enclosed (like a pizza pocket type of thing) and wouldn't need heating (can be consumed room temp). I can prepare these the morning before, but considering we start at 6am, i'd prefer to have them made the night before... anyone have any suggestions? maybe little sandwiches? empinadas?