Freezing Directions: Once you've assembled the ravioli, arrange the ravioli on a parchment paper lined baking sheet in a single layer, cover and transfer them to the freezer. Freeze 1-2 hours and then transfer the frozen ravioli to a freezer bag. The ravioli can be frozen for up to 4 months. To cook, boil from frozen and add 1-2 minutes of additional cooking time.