Won ton skins, also called won ton wraps or wrappers, are ready-to-use thin squares of a flour-based dough designed to be filled with a meat, seafood, or vegetable filling and shaped into won tons. However, they are so similar to fresh pasta that they can be a great shortcut when making any dish, such as lasagna or ravioli, that is traditionally made with sheets of fresh pasta. You can find fresh wonton skins near the tofu in the refrigerated section of Asian and natural foods stores or in the freezer in supermarkets.