To prepare kale ahead of time, simply tear fresh kale to measure 1 cup and boil until tender, about 3 minutes. Drain well, squeezing until dry.
You can also use other cooked greens as well, such as spinach, purple or white cabbage coleslaw mix or turnip greens, just to name a few. Coddle means to barely simmer, so this recipe is a true Irish Coddle.