Leeks are a sweet and savory vegetable that are a bold and delicious onion flavor. This recipe for Leeks and Tomme de Savoie Vol au Vents is a decadent dish that pairs the hearty leek with flavorful ingredients like cheese and diced ham, all in a Vol au Vent puff pastry. If you want to taste something that will melt in your mouth and leave your taste buds happy, then try this dish.