Wasn't exactly sure what you meant by greens, but if you mean spring greens, I have just wikapedia'd it (a new verb!) and read that it is like kale. With kale, I usually just saute it with some tinned tomatoes, chick peas and chorizo for a quick meal.
With spinach, most often I saute it with some olive oil, garlic and a little bit of lemon juice for a side dish, so that might work with spring greens.
Nutmeg works quite nicely with greens as well. Just sprinkle a small amount on towards the end of cooking for a nice flavor.