Salad greens include lettuces, arugula, spinach, endive, escarole and more. Their seasonality is a bit lengthier than the other foods on this list -- peaking in spring, summer and fall, depending on where you live.
A two-cup serving of greens has less than fifteen calories. Packed with nutrients like vitamin C, fiber, vitamin A, beta-carotene and potassium, salad greens are a healthy and smart addition to any diet. The darker the leaf, the more vitamins the greens contain. This is true for all leafy vegetables.
Lettuce is a delicate vegetable. Avoid greens with wilting or yellowing. Don't wash your greens until you're ready to use them. Excess moisture encourages decay, so ensure your greens are nice and dry before you store them in the fridge (for three to five days).