Fun Fare. Hmmm - what could it be? Hattie's Fried Chicken? Kick-Butt Chili? Texas Brisket? BBQ Pork Sandwiches? Deep Dish Pizza? All of the above, please!
I love casual parties. I love the "ease" of them, although when it comes to cooking, that's almost a given that you want to eat things that you normally have everyday and that will satisfy you "happily". It'll make you say YUM when the party is done and you can waddle home from "all the goodness" you've consumed.
Don't forget - a casual party is also about seeing your friends, not just the food. Have fun!