Get the Luck of the Green

While four-leaf clovers aren't on most menus, you can still celebrate the month of St. Patty with something green: spinach. Right now, spinach is fresh and in season at your local grocery or farm stand. Packed with iron, calcium and potassium, spinach is a steal at just 7 calories per cup fresh or 42 calories per cup cooked.

Give it a dunk in a clean sink or tub filled with water to wash any grit away. Cut off stems, then serve spinach fresh in place of your usual lettuce, or give it a light steam in a frying pan with a few tablespoons of water (watch close, it cooks quickly).