Tough greens, like kale and collard greens, can take some work to make them suitable for salad but if you marinate them in oil for a bit first, you ll tenderize them, make your salad even tastier, and start a light dressing all at the same time.
The waxy coating on greens like kale is oil soluble, which is why a quick bath in the oil you ll use for your dressing is able to break through and tenderize the leaves.
When prepping your greens, massage them with a little oil, then let them sit for about half an hour.
Drain extra oil, pat them dry a bit if you want to get even more off, and finally add some acid or other dressing ingredients and toss the greens.
At the end,you ll have a salad with a more enjoyable texture.
If you re concerned about added fat or calories from the oil, just account for it when mixing your dressing, and you ll be all set..