My mum also made the mock apple pie, as a child I liked it better than apple pie.
She also made glazed corned beef that had canned pineapple and cola (or it might have been ginger ale) poured over it. It was supposed to taste like ham, don't know why she just didn't make ham! In those days (sixties) it seems like the whole point was to use the strange ingredients rather than thinking about how it would taste.
There also used to be recipes for cakes made with tomato soup and with mayonnaise.