Spinach

Tender and flavorful, this leafy green is rich in iron, folic acid, and vitamin K. It also contains disease-fighting antioxidants beta-carotene and vitamin C, as well as the phytochemical lutein, which protects eyes against age-related macular degeneration. Use as a substitute for lettuce in salad, lightly sauté with shredded carrot, sliced mushrooms, and garlic for a savory omelet filling, or try this simple Seasoned Spinach recipe for a quick and nutritious side dish.