Audience Participation Time

I received an invitation in the mail today to attend a lunch at the French equivalent of the State Department -- le ministère des Affaires étrangères et européennes. While I'm usually not much of a socializer, my m.o. here has been to accept pretty much any invitation that comes my way because you never know what the experience will turn out to be. There's just one catch. I have to bring a typical dish from my country and it cannot be a dessert. I don't mind cooking; it's just that I'm a bit stumped about what to make. When I was at the American Library this afternoon, I picked up the latest issue of Gourmet for inspiration, only to find recipes for shrimp tikka with mango chutney, grilled kielbasa with warm potato salad, and carmelized onion and gorgonzola pizza. Now there's American food for you.

So please, if you dare, weigh in with a suggestion. I'm looking for a dish that:

a) can be made with ingredients that can be found in Paris (I have my sources for some of the things that aren't typically on the shelves here but there are limits);
b) can be prepared in advance and served at room temperature; and
c) is tasty and won't be an embarrassing addition to the buffet.

P.S. This marks my 100th post!

Update: I made cornbread. Don't know how it went over. There were so many people that there were three large salons, each with its own buffet and my dish ended up in one of the other rooms.