This kale recipe is nutritious and delicious, and it's very easy to prepare and cook. There's very little fat in the recipe, and it can be reduced even further by using nonstick cooking spray and a little broth to saute the onion. We used the portuguese hot crushed red peppers (wet, from a jar) in this dish, but feel free to use fresh minced hot peppers for heat. Alternatively, chopped sweet red bell peppers can be used.