Use as a side dish, you can roast them with parmesan cheese, salt, and pepper. Leeks are famous in soups, stews, and vegetable or Chicken Stock. Clean, chop and saute to add into pasta dishes, Parmesan Risotto, toss into an omelet, or sprinkle as a pizza topping. Bake into a cheesy French gratin, mix into roasted or Smashed Potatoes or in Hash Browns for breakfast. Bake up a leek tart, a leek potato casserole, or use in scalloped potatoes.