Colcannon is an Irish dish traditionally served on Hallowe’en, with coins hidden in the mash for children to find, but has also served as a regular staple. It’s similar to the English dish Bubble and Squeak, which was popular during WWII as a cheap and nutritious combination of leftovers. There are lots of variations on the dish, so experiment to see what suits you best:

You can use cabbage or kale. Onions, leeks, and green onions can be used interchangeably in this dish.

Some insist that the potatoes must be mashed smoothly, but the kale breaks the smoothness up enough not to notice some potato skin.