Preheat oven to 425°. In a saucepan, boil 6 cups water. Add the potato, leek, carrots and celery and boil for 5 minutes. Add the frozen peas and boil for 2 minutes, or until potato is tender. Drain and set aside.
In a large skillet over medium heat, melt the butter. Add the onion and garlic and sauté until the onion is softened, about 2 minutes. Stir in the flour, salt, pepper, celery seed and thyme. Whisk in the vegetable broth. Add the almond milk. Whisk for 5 minutes, or until thickened. Transfer the sauce to the saucepan with the drained vegetables and stir to combine.
Arrange 1 unbaked crust in an 8-inch pie dish and bake for 5 minutes. Remove from oven.
Pour the vegetable mixture into the partially baked pie crust. Cover with the second uncooked pie crust. Seal the edges and use a knife to cut small slits into the top of the pie crust. Bake for 30 minutes, or until pastry is golden brown and the filling is bubbly. Let cool for 10 minutes before serving.
Preheat oven to 425°. In a saucepan, boil 6 cups water. Add the potato, leek, carrots and celery and boil for 5 minutes. Add the frozen peas and boil for 2 minutes, or until potato is tender. Drain and set aside.
In a large skillet over medium heat, melt the butter. Add the onion and garlic and sauté until the onion is softened, about 2 minutes. Stir in the flour, salt, pepper, celery seed and thyme. Whisk in the vegetable broth. Add the almond milk. Whisk for 5 minutes, or until thickened. Transfer the sauce to the saucepan with the drained vegetables and stir to combine.
Arrange 1 unbaked crust in an 8-inch pie dish and bake for 5 minutes. Remove from oven.
Pour the vegetable mixture into the partially baked pie crust. Cover with the second uncooked pie crust. Seal the edges and use a knife to cut small slits into the top of the pie crust. Bake for 30 minutes, or until pastry is golden brown and the filling is bubbly. Let cool for 10 minutes before serving.
Thank you!