Beetroot leaf sauté

I'm always happy when I can incorporate a night of Nigel into general feeding of my loved ones and, as the fussy daughter is out tonight, I'm left with my vegetarian boyfriend to feed (and coincidentally finally managed to find the beetroot stems on a market). And so voila.  I was really sceptical about this dish when I was making it and it only really came together at the end of the cooking time when it was really delicious. My boyfriend wolfed this down - I made fried eggs to go with his.