Today, I found out that we're taking a 400 mile drive next Friday, for a birthday party for my soon-to-be 80 year old mom, on Saturday at 4. Annnnnd...it's potluck.
I need stuff that I can make (or mostly make, could be "finished" onsite) on Thursday, refrigerate, throw in a cooler on Friday morning, drive 400 miles, and throw in a refrigerator Friday afternoon...that will still be edible at 4pm on Saturday.
The only thing I've come up with so far is this caramelized onion/olive/cream cheese mixture that I use as a pasta filling, which doubles well as a cheese log.
Any other ideas?