I found this recipe in Deborah Madison's book Vegetarian Cooking for Everyone. I used it as part of a meal that i was creating that needed to contain 45 or fewer carbs. My guests, one of whom who does not like kale, loved the mixture of the beans and the kale and really enjoyed this dish. Next time, I might make some croutons to sprinkle on top of it as well to give it a bit of crunch.