I have to admit that I don't eat enough leafy green vegetables. I should though because cruciferous veggies such as kale, spinach, etc. contain cancer-fighting properties as well as tons of Vitamin A, C, K, calcium, omega 3, protein, fiber, iron, etc.
I got my kale fix recently though with Garlicky Kale with Tahini Dressing that is a recipe in Vegan with a Vengeance. It's yummy, but what really surprises me is that a huge bunch of kale wilts down to almost nothing when cooked. : (