Yes, you can freeze it. If freezing, let the soup cool after cooking, then transfer it to freezer safe bags or containers. We recommend cooking the mushrooms and pasta fresh the day you're eating it. But, you could also cook the mushrooms, then add them back to the cooled soup and freeze together. This recipe keeps the noodles separate from the liquid, to prevent the noodles from swelling, so we do not recommend freezing the noodles with the soup.