This isn't a recipe... It's an ingredient plus an already prepared soup? Like you might as well have told us to go to the store and buy a can of soup! This is not what I expect from MSL.
Rating: 4 stars
Collard or mustard greens are great too. Dandelion greens work well too. You don't always have to use kale but it is the most nutritious of the greens I think. I use any or all of these greens when making homemade veg soup.