My favourite Winter 'green' vegetable has to be the wonderful Cavolo Nero; the Tuscan Black Cabbage.
The long wrinkly leaves have become a mainstay of my preferred meat-n-one-veg style of eating. They are tender, sweet, and very good for you. They are also very easy to grow.
At this time of year, growers are all too eager to pull them up to make way for new crops, but this is a big mistake.
It's now that they start to produce 'sproutings'. At the top of each plant, and all the way up the stems where the leaves were picked, small sprouts appear. These are delicious. In fact I would say that they are possibly more delicious, and even more tender, than the leaves for which they were originally grown.
So, if you have a few plants in the garden, wait a while before you pull them up; they have a treat in store for you!