Brown the sausage in a nonstick skillet and transfer to a cutting board. When the links are cool enough to handle, slice them 1/2-inch thick and add to the slow cooker. (I used my 4-Quart.)
Cut the potatoes into quarters lengthwise. And then cut the quarters into thin slices.
Add the potatoes to the slow cooker.
Stir in the chicken stock, and crushed red pepper flakes, if using.
Cover and cook on LOW 6-8 hours, or until potatoes are tender.
Fifteen to 20 minutes before serving, stir in the chopped kale and evaporated milk and cook until the kale wilts and soup is heated through.
Season to taste with salt and pepper.
Notes
Serving size: 1-1/3 cupsWW Points: 5Check the WW Points for this recipe and track it in the WW app. (You must be logged into WW on a smartphone or tablet.)5PointsPlus (Old plan)**Be sure to remove the tough stems and ribs from the kale before chopping.