Kale is finally getting the recognition it deserves. That’s because this leafy green vegetable is sweet and earthy, very versatile and incredibly nutritious. Winter is peak season for kale; in fact, many people say it actually tastes sweeter and more flavorful after being exposed to a frost. The veggie contains beta-carotene and the antioxidants lutein and zeaxanthin—which are associated with eye health—as well as potassium, vitamins A and C, fiber, iron and calcium. Plus, there are two grams of protein in a serving. Consider using kale as a stand-in for spinach in your favorite dishes, or try kale chips, a crunchy alternative to potato chips. Whole Foods Market offers pre-packaged varieties of kale chips, as well as recipes to make your own.