I am making the Williams Sonoma butternut squash casserole (which uses pre-purchased WS butternut squash puree as the base). If I make this now, would it be ok to freeze it? I have never frozen a casserole, and don't want to mess it up after the $ investment of the ingredients. Thanks!
recipe link for reference: Butternut Squash Casserole | Recipes for Casseroles | International Recipes
recipe link for reference: Butternut Squash Casserole | Recipes for Casseroles | International Recipes