Yes! If you want to freeze the crumble before baking, freeze the fruit filling and crumble portions separately. Seal the crumble in a sealed freezer-safe bag. Place in the freezer for up to 3 months. (Be sure to break up any large lumps of crumble beforehand.) Prepare the fruit filling and place it into the baking dish. Wrap it well and place in the freezer in a sealed freezer-safe bag for up to 3 months. Spread the crumble onto the frozen fruit filling just before baking. Baking time will need to be extended since ingredients are frozen. Do not adjust oven temperature.