Vegetable Pot Pie
Ingredients
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- 1 1/4 cups all-purpose flour
- 1/2 tsp kosher salt
- 1/2 cups unsalted butter – cold, cut into cubes
- 4 tbsp ice water
- 1 1/2 cups yellow onion – diced (~2 medium yellow onions)
- 1 1/2 cups carrots – sliced (~3.5 medium carrots)
- 1 cups celery – sliced
- 8 ounces cremini mushrooms – sliced (~12.5 medium cremini mushrooms)
- 3 cloves garlic – minced
- 3 tbsp unsalted butter
- 1/2 cups all-purpose flour
- 3 cups vegetable broth
- 1 cups whole milk
- 2 cups russet potatoes – peeled and diced 0.5-inch (~1.5 medium russet potatos)
- 1 tsp fresh thyme – chopped
- 1 leaf bay leaf
- 1 1/4 tsp kosher salt
- 3/4 tsp black pepper – freshly ground
- 1 cups frozen peas
- 1 large egg – beaten
- 1 tbsp water
- 2 tbsp fresh parsley – chopped (for serving)
Instructions
1. Make the dough: In a bowl, whisk together 1.25 cups all-purpose flour and 0.5 tsp kosher salt. Cut in 0.5 cup cold, cubed unsalted butter until the mixture resembles coarse crumbs with pea-size bits. Drizzle in 4 tbsp ice water, tossing just until the dough holds together; form into a disk, wrap, and chill until firm, 1 hour.
2. Preheat the oven to 400°F (200°C). Set a deep 9-inch pie dish or 10-inch oven-safe skillet on a rimmed baking sheet to catch drips.
3. Start the filling: Melt 3 tbsp unsalted butter in a large skillet over medium heat. Add 1.5 cups diced yellow onion, 1.5 cups sliced carrots, and 1 cup sliced celery; cook, stirring, until softened, 6–8 minutes. Stir in 8 ounces sliced cremini mushrooms and cook until they release their juices and concentrate, 5–7 minutes. Add 3 minced garlic cloves and cook until fragrant, 30 seconds.
4. Make the roux: Sprinkle 0.5 cup all-purpose flour over the vegetables and cook, stirring constantly, until the flour is absorbed and slightly nutty, 2–3 minutes.
5. Build the sauce: Gradually whisk in 3 cups vegetable broth, then 1 cup whole milk, smoothing out any lumps. Add 2 cups peeled, 0.5-inch diced russet potatoes, 1 tsp chopped fresh thyme, and 1 bay leaf. Simmer, stirring occasionally, until the potatoes are just tender and the sauce is thick and bubbly, 10–12 minutes. Season with 1.25 tsp kosher salt and 0.75 tsp freshly ground black pepper. Remove from heat.
6. Finish the filling: Stir in 1 cup frozen peas. Discard the bay leaf and let the filling cool 10 minutes to slightly thicken.
7. Assemble: Roll the chilled dough on a lightly floured surface into a 12-inch round. Pour the vegetable filling into the prepared dish. Drape the dough over the top, trim excess to a 1-inch overhang, tuck and crimp the edge. Cut 4–6 small slits in the top to vent.
8. Make egg wash by mixing 1 beaten large egg with 1 tbsp water, then brush over the crust. Bake at 400°F until the crust is deep golden and the filling is bubbling in the center, 35–45 minutes.
9. Rest 10–15 minutes to set the juices. Sprinkle with 2 tbsp chopped fresh parsley (for serving), slice, and serve warm.
Vegetable pot pie is a cozy, savory pie filled with tender vegetables bound in a creamy gravy and sealed under a flaky pastry crust. The filling typically balances sweet carrots and peas with earthy mushrooms, onion, and celery, plus potatoes for body, all scented with herbs like thyme and bay. The contrast of a crisp, buttery crust and rich, bubbling interior makes it a satisfying main course that appeals beyond vegetarian tables.
The pot pie format traces its roots to British savory pies and colonial American cookery, where meat pies were common fare baked in sturdy crusts. Over time in the United States, the style evolved into the familiar pot pie—often a single top crust over a creamy filling—popularized in home kitchens and diners. The vegetable-only version grew alongside modern vegetarian cooking, keeping the classic technique while celebrating produce and comfort-food tradition.