I made a meal that my wife and MIL go nuts for... Brunswick Stew. First time making it on Christmas Day, though. Don't ask me why they like it so much, it probably got its origins as a "clean out your refrigerator" meal; just throw whatever you've got in the pot.
The recipe I use is a chicken stock, tomato, and Carolina vinegar BBQ base, with vegetables, and the protein is pork shoulder and ham. I make it my own by smoking the pork shoulder in 1/2 lb pieces til partially done (did it longer this time, til about 160F) before it goes in the cast iron, then back on the green egg til done. I finally got it to be worthy of the fuss they make over it!
I'm considering making a dish called "Calvados Chicken" for New Year's, it's a French dish, but I haven't actually been able to find Calvados (a specific French brandy) for it yet. I just make it with regular brandy, and it's still delicious. Same kind of thing, cast iron on the green egg.