There are many different colors and varieties of kale: leaves might be curly or bumpy or plain and colors can range from light green to dark purple. This superfood has seen a boom in popularity in the past few years, for good reason. It has tons of nutrients, like vitamin A, vitamin C, calcium, iron, and alpha-linoleic acid, that boost cardiovascular and brain health. One of the few vegetables that can be harvested after a frost, kale is locally available well into the fall season. Try it braised, in stews or salads, or roasted to make kale chips!