How about Mock Chicken?
When I was 12, I used to collect the empty beer glasses at the Trots at the showground on Saturday afternoons for 5 shillings.
The small cafeteria would supply afternoon tea for the comittee members which included delicious sausage rolls and sandwiches including mock chicken ones, and when the members left, there would often be plenty of leftovers which I happily “disposed” of whilst collecting any empty beer glasses.
The mock chicken sandwiches were the most delicious thing I had ever eaten at that age.
I tried to make some a few years ago but they were nowhere as nice.