Suzy's munging recipe

I’d like to suggest a simple cooking method which is ideal for using up leftovers; munging.
For instance a recent dinner comprised cod in a buttery leek and lemon sauce, new potatoes and veggies.
As is so often the case I couldn’t eat the lot so put my leavings on a tea plate in the fridge in the hope inspiration would hit by lunchtime.
It did – I’d munge it!