The recipe for kale calzones in The Victory Garden Cookbook is a great way to use your kale.  The following is an outline of the recipe:

Sauté chopped kale in olive oil with garlic, rosemary etc. (blanching the kale first will make it more tender).  Make bread dough, roll out into 8″ rounds, on one half of round place kale, grated mozzarella, and optionally tomato sauce and sausage or salami.  Fold over making a turnover shape, crimp edges and prick top with a fork.  Bake at 375-degree oven for 25 minutes.