Vegan Pot Pie with Sweet Potato Crust. A cozy, must-make this winter.  It's time for cozy and this pot pie is the perfect meal. PrintVegan Sweet Potato Pot PieAuthor Alex Caspero Vegan Pot Pie with Sweet Potato Crust. A cozy, must-make this winter. Ingredients2 tablespoons olive oil1 white onion, diced1 cup diced carrots4 celery stalks,