Fish pie! This is the one I use:
cook.dannemann.org.uk/cooking/mains/fishpie/
With photos too! So simple even I can do it.
Apparently poaching the fish in CIDER is even better.
My veggie peeler only gets used for shaving parmesan. I just scrub my pots, boil/microwave em and whizz em up in the blender for a sec to break up the skins which I leave in for a bit o texture. Or just mash em up with the skins on.