To prepare filling, peel and cook butternut squash on the stove. Mash up the squash and flavor with nutmeg and sage to taste. You may also want to add a little butter and salt.
Fill your wonton wrappers with a small amount of squash and brush edges with egg. Fold over and press down the edges with your fingers or a fork. (If you have smaller wrappers then you may need to fill one wrapper and place another on top then seal them together.)
When filling the wontons, keep the package covered with a damp towel so they don’t dry out. Wrap and freeze any unused wonton wrappers for up to two months.
Cooking your ravioli:
Bring water to a boil before adding the ravioli. Add them one at a time so they don’t stick together, then give them a stir. Don’t allow them to boil rapidly; if the water has too much movement, the ravioli will break open. Ravioli will give you a sign when they are cooked: They will float to the top of the water.
Serve with marinara sauce or a light cream sauce.