Often sold in boxes (usually pre-washed), baby spinach is part of the amaranth family. How to use baby spinach: Toss it into salads with or without other greens. Since it’s often pre-washed, it may be ...

Spinach. It's one of the most nutritious lettuce options and is "a versatile, iron-rich green that's often used in both raw and cooked dishes," says Messer. Butterhead. This is another popular ...