Sausages in a bag with Jerusalem artichokes and buttered curly kale

Yesterday I used some of my Jerusalem artichokes from the Cowbridge Farmers Market. It's hard to find a recipe for them, that isn't soup! But I found this one, Sausages in a bag with Jerusalem artichokes and buttered spinach by Ed Baines (Saturday Kitchen), and it was really tasty. I substituted the spinach for curly kale, also from the market.

The sausages were from the friendly butchers in Pontyclun high street, I'm going there again in a minute, because they have a Victorian Christmas Fayre this afternoon - all the shop keepers are dressing up, and have displays in their windows.