Kale Chips are to die for (recipe above where you roast in the oven). Do it with curly kale and NOT frozen. That won't work.
We love kale around here and another great way to eat it is just sauteed with some S&P, onions, garlic, evoo, pinch of red pepper flakes, and a splash of vinegar.
Also this soup:
http://www.foodandwine.com/recipes/kale-and-potato-soup-with-turkey-sausage