My default party food is a black bean and corn salad. It travels really well and gets better the longer it sits.
- can black beans, rinsed- can corn, drained- one red pepper diced- a couple of tomatos diced- half a red onion diced- juice and zest of a lime (or lemon if you don’t have a lime)- one tbsp hot sauce- something green for garnish (cilantro by preference but flat leaf parsley works too)
That’s it. Throw all the ingredients together and stir.
— http://ask.metafilter.com/107171/Have-food-Will-travel