Vegetable Pot Pie
A creamy, thyme-scented filling of potatoes, mushrooms, carrots and peas enriched with Gruyere, baked under a flaky, deeply golden puff pastry lid.
By Theo Brandt, Test Kitchen Lead & Cheese Specialist
Published November 26, 2025
- Prep
- 30 min
- Cook
- 55 min
- Total
- 1 hr 25 min
- Servings
- 6
- Level
- Medium
A vegetable pot pie should be every bit as cozy as the chicken version, and this one delivers. Browned mushrooms and a splash of dry white wine give the filling a savory depth, while a handful of nutty Gruyere melts into the sauce for extra richness.
We parcook the potatoes and carrots right in the sauce so they are perfectly tender by the time the pastry is puffed and golden. A sheet of store-bought puff pastry keeps things simple, and cutting a few vents lets steam escape so the top stays crisp.
Let it rest for 10 minutes before scooping so the filling thickens up. A bitter green salad with a sharp vinaigrette is the ideal partner.
- Flaky golden puff pastry
- Gruyere-enriched creamy filling
- Make-ahead filling
Ingredients
Directions
Heat the oven to 400 degrees F and set a rimmed baking sheet on the lower rack to catch drips.
Melt 1 tbsp of the butter in a large Dutch oven or deep oven-safe skillet over medium-high heat. Add the mushrooms and cook until browned and their liquid has evaporated, 6 to 7 minutes. Season with salt and transfer to a plate.
Reduce the heat to medium and melt the remaining 3 tbsp butter. Add the onion, carrots and celery with a pinch of salt and cook until softened, 6 to 8 minutes.
Add the potatoes and garlic and cook for 2 minutes, stirring.
Sprinkle in the flour and stir constantly for 1 to 2 minutes to cook out the raw taste.
Pour in the wine and stir until mostly evaporated, then gradually whisk in the broth and cream until smooth.
Add the thyme and bring to a simmer. Cook, stirring often, until the sauce is thick and the potatoes are just tender, 10 to 12 minutes.
Stir in the mushrooms, peas and Gruyere until the cheese melts. Season generously with salt and pepper. If using a skillet that is not oven-safe, transfer the filling to a 2 1/2-quart baking dish.
Lay the puff pastry over the filling, trimming it to leave a 1/2-inch overhang, and press the edges against the rim. Brush with the egg wash and cut 4 small vents in the top.
Bake on the upper-middle rack until the pastry is puffed and deep golden and the filling is bubbling, 28 to 32 minutes.
Let rest 10 minutes before serving.
Test-kitchen tips
- Make the filling up to 2 days ahead and refrigerate. Warm it on the stove before topping with pastry so the bottom heats through by the time the top is browned.
- Keep the puff pastry cold until the moment it goes on. Warm pastry gets sticky and will not puff as dramatically.
- Swap in butternut squash for the potatoes in the fall, or use pie dough or drop biscuits instead of puff pastry.
