We were invited to a small get together (probably 10 - 15 people) at a friend's house this weekend. The host will be providing brats, other german sausages and pork tenderloin along with some wine and other beverages. The guests will be bringing sides and desserts. I'll be bringing some more wine and probably a bottle of bubbly. I'd also like to bring a really great side dish, but I'm having a hard time coming up with one. I think the standard potato salad, cole slaw, etc. type items are covered already so I'd like for it to be something a little more chowhound-y. But it also needs to be something that I can put together the night before or even the morning of the get together.
Any ideas for a killer side?