Peel, cook, and mash potatoes. At the same time, chop kale finely, cook until tender. Dice and cook sausage. Put kale into a blender with enough of the cooking water to make a thick slurry. When done, add to the mashed potatoes. Add cooked sausage. Add butter. salt and pepper to taste. Mix well and serve piping hot.
NOTES: For a more festive apprearance, put into a cassarole dish, garnish with slices of Oude Gouda (Old Gouda) or a medium cheddar and sprinkle with paprika. Place in medium oven until cheese melts and begins to brown.