A five-course town meal, following days or weeks on the trail.
Mythical, in the sense that hikers told they have to wait for separate courses to be served in turn just fight.
Normally a plate is seen as a place to pile up as much food of different kinds as possible, and then eat it. All.
We were warned against going for the fiver. We just got a bucket of chicken and quart of ice cream each and we ended up both happy and well fed.