Spanish tortilla
I make a good tortilla, too, myself. But this is a very different dish:
It's from raw potato and onion (minimal egg) - the potato starch from shredding the potato binds the patties.
I would agree about mixing savoury and sweet stuff, normally, but there are exceptions: berrys/jam on game, berrys/jam and certain cheeses (camenbert) and... Kartoffelpuffer mit Apfelmus.
Don't knock it until you've tried.