Yes! Vegan apple crumble pie is perfect for freezing. I’d recommend baking it first and allowing it to cool completely before freezing. You can wrap the pie tightly with foil or place it in an airtight freezer bag. Then, when you’re ready, just remove it from the freezer and remove the foil or bag. Put the pie onto a baking tray and bake in a 150°C/300°F oven for 45-60 minutes. Check the center with a knife every so often, and you'll know it's ready when it's warm all the way through.