Sweet Potatoes Greens: You didn’t know you could eat these, did you? These are exactly what they sound like—the tops of the sweet potato plant—and a common green served in many Asian and African cultures. They’re high in antioxidants and in vitamins A, C and B2. Sauté them, steam them, boil them, put them in soup. We’re stretching your horizons, and you’ll be happy!