Mmm, I love spinach, cooked or raw it's loverly!
Another thing I found recently, the sachets of Oxo gravy granules are only around 22 calories per 100ml made up as per pack instructions. It's so tasty, I had the beef one with shallots and berries the other night and omg, so much tastier than the usual stuff. I put it on venison sausages (tesco finest, 3 come in at 180 cals, bargainous!) and it felt like it should've been very calorific, but wasn't at all.
Also, half a pack of the tesco finest mashed potato is only 175 cals. Very nice, and great to have in for quicky, easy dinners, and you get a fair amount of it.