That is my stupid brilliant discovery for today. I wasn't sure if I should add this to the "I'm always cold" thread or not but it totally works.
I had to use up some stuff from the cabinets and fridge, so made basically the WW "Asian" soup, with a can of low-fat chicken broth, a handful of my shredded cabbage-carrot salad mix, lots of green onions, fresh ginger, soy sauce, and a couple of pork dumplings from the freezer. Put it on the boil for 3 minutes (oh, let's be honest -- I microwaved it in a glass mixing bowl), added some snap peas, cilantro, and a squeeze from a bottle of sweet chili sauce and cooked another minute.
I don't know if it was the soup itself or the ginger and chili that did it, but my face is glowing and I'm the warmest I've been all week. I actually had to take off a layer of clothing. Aside from the pork dumplings it's about 70 calories for the whole thing. Tomorrow I'm going to try it with chicken and tofu and mushrooms.