Mash hash has become a regular feature of my week. In order to make weekday meals speedier, I bulk cook some things in advance when I have time, like potatoes.
I cook up a batch, I usually boil them, sometimes roast, and then I use them throughout the week. I peel them and cut them in slices before frying them for a speedy hash with eggs. I fry the skins to make crispy potato skins which may become the centre of a dish or a lovely crisp garnish. I make potato cakes, gnocchi, croquettes. All of these things are speedy once your potatoes are already cooked. Recently, I have become a little obsessed with Mash Hash.