We had dinner at my parent's ward building. They (my parents) often ask if they can have Thanksgiving dinner at the church so that families who have no other family nearby can all come and eat together. They usually talk the bishop into having the ward buy a couple of turkeys and maybe a ham, and then everyone brings the side dishes. They don't do this every year, but they have done it on and off for the last 10 years.
This year I brought to the potluck:
Sweet potato casserole Ham Homemade cranberry sauce Green salad