Lentil Pot Pie with Butternut Squash brings all the comfort of a classic pie with a cozy, vegetarian twist. I pack the filling with tender lentils, sweet roasted squash, and a savory gravy that coats every bite. I keep puff pastry on standby for nights when I want a golden lid with minimal effort. You get a bubbling center, flaky top, and that deep “winter evening” satisfaction without any heavy fuss.
Easy Lentil Pot Pie with Butternut Squash
- It tastes rich and hearty, yet it stays light enough for a weeknight dinner. Lentils bring protein and fiber, and butternut squash adds natural sweetness that plays so well with herbs.
- You can build the filling in one pan and finish it in the oven under puff pastry. I reach for a deep skillet or Dutch oven, then slide everything into a baking dish.
- The recipe welcomes swaps based on your pantry. I mix in peas, mushrooms, or a splash of wine when I feel fancy, and the pie still delivers.
- Leftovers reheat like a dream. The gravy thickens more overnight, the flavors meld, and lunch practically cooks itself.
Ingredients You’ll Need
- 1 cup dried green or brown lentils, rinsed
- 3 cups butternut squash, peeled and cubed 3/4–1 inch (about 1 small squash)
- 2 tablespoons olive oil, divided (plus more as needed)
- 1 medium yellow onion, diced
- 2 carrots, diced
- 2 celery stalks, diced
- 3 garlic cloves, minced
- 1 teaspoon fresh thyme leaves (or 1/2 teaspoon dried)
- 1/2 teaspoon chopped fresh rosemary (or 1/4 teaspoon dried)
- 1/2 teaspoon smoked paprika (optional, but so good)
- 3 tablespoons butter or vegan butter
- 3 tablespoons all-purpose flour (use a 1:1 gluten-free blend if needed)
- 3 cups vegetable broth
- 1/2 cup milk, half-and-half, or unsweetened plant milk
- 1 tablespoon soy sauce or tamari
- 1 teaspoon Dijon mustard
- 1 cup frozen peas
- Kosher salt and black pepper, to taste
- 1 sheet puff pastry, thawed but cold
- 1 egg, beaten with 1 teaspoon water, for egg wash (skip for vegan; brush with a little plant milk or oil)
Note: You can bake the pie in a 9-inch deep pie dish, an 8–9 inch square pan, or a 2-quart baking dish.
How to Make Lentil Pot Pie with Butternut Squash
Set up and cook the components
- Heat the oven to 400°F (200°C). Bring a pot of salted water to a boil, add the lentils, and simmer until just tender with a slight bite, 15–20 minutes. Drain and set aside.
- While the lentils simmer, toss the squash with 1 tablespoon olive oil, a pinch of salt, and pepper. Spread on a sheet pan and roast until tender with caramelized edges, 20–25 minutes. Stir once halfway for even color.
Build the savory gravy and filling
- Warm 1 tablespoon olive oil in a large skillet or Dutch oven over medium heat. Add onion, carrot, and celery, and cook until the veg softens and edges turn golden, 6–8 minutes. Stir in garlic, thyme, rosemary, and smoked paprika, and cook 1 minute until fragrant.
- Melt the butter in the pan. Sprinkle the flour over the veg and stir to coat. Cook the roux, stirring, for 2 minutes to remove the raw flour taste. Whisk in the broth and milk in a slow stream until smooth, then simmer until the sauce thickens and coats the spoon, 5–7 minutes.
- Stir in soy sauce and Dijon. Fold in cooked lentils, roasted squash, and peas. Taste and adjust with salt and pepper. The filling should taste a touch salty and well seasoned.
Assemble and bake
- Spoon the filling into your baking dish. Roll the puff pastry just enough to fit the dish with a slight overhang. Lay it over the filling, tuck or crimp the edges, and cut a few small slits on top. Brush with egg wash (or plant milk/oil).
- Place the dish on a sheet pan to catch any bubbles. Bake until the pastry turns deep golden and the filling bubbles at the edges, 25–30 minutes. Let the pie rest for 10 minutes before serving.
Cooking Tips
- Use green or brown lentils. They hold shape better than red lentils, which turn mushy in a pot pie.
- Roast the squash while you simmer the lentils. You save time and you get caramelized edges that add big flavor.
- Keep the pastry cold. Warm pastry slumps; cold pastry puffs and flakes.
- Vent the top with a few slits. Steam needs an exit, or the pastry domes and the filling breaks out the side.
- Let the pie rest 10 minutes before you dig in. The sauce settles and thickens, and the slices hold together.
Variations I’ve Tried
- Biscuit-top pie: Drop your favorite buttermilk or yogurt biscuits over the hot filling and bake until the biscuits turn golden and cooked through.
- Vegan version: Use olive oil or vegan butter, plant milk, and a plant-based puff pastry. Skip the egg wash or brush with oat milk.
- Mushroom boost: Sauté 8 ounces sliced cremini or shiitake with the veg for a savory kick that makes the gravy taste extra rich.
- Curry-spiced pie: Swap thyme/rosemary for 1–2 teaspoons curry powder and use coconut milk for the dairy. Add chopped cilantro at the end.
- Sweet potato swap: Use cubed sweet potato in place of squash for a slightly different sweetness that still fits the cozy vibe.
- Mini pot pies: Divide the filling into ramekins and cover each with a circle of pastry. Bake 18–22 minutes until golden.
What to Serve with it
- Simple arugula salad with lemon, olive oil, and shaved Parmesan (or vegan flakes) for a peppery, bright contrast.
- Roasted green beans or broccoli with garlic and a squeeze of lemon.
- Sautéed kale with chili flakes and a splash of sherry vinegar.
- Apple and fennel slaw for crunchy, sweet-tart balance.
- Warm crusty bread to scoop every last bit of gravy.
- Drinks: dry cider, Pinot Noir, or a crisp Sauvignon Blanc.
Make-Ahead and Storage
Lentil Pot Pie with Butternut Squash reheats so well that it’s one of my go-to meal-prep comfort dinners.
Make-Ahead: Bake the recipe and keep leftovers for the week, or assemble the filling and cool it, then top with pastry and refrigerate unbaked for up to 24 hours. You can also freeze the unbaked pie, well wrapped, for up to 3 months; add 10–15 minutes to bake time from frozen.
To Refrigerate: Store cooled pot pie or leftover slices in an airtight container in the fridge for up to 4 days.
Freezing: Freeze leftovers for up to 3 months. Thaw in the fridge overnight.
To Reheat: Warm in the oven or air fryer at 350°F (175°C) until hot and crisp again, about 10–20 minutes depending on portion size. Use the microwave in 30-second intervals for quick lunches, then pop under a broiler for a minute to revive the top.
Lentil Pot Pie with Butternut Squash
Lentil Pot Pie with Butternut Squash is a hearty, comforting dinner featuring protein-rich lentils, sweet butternut squash, and a flaky pastry crust.
Ingredients
Instructions
- Preheat oven to 400°F (200°C).
- In a pot, combine lentils and vegetable broth. Bring to a boil, then simmer for 20 minutes until just tender. Drain if necessary.
- Heat olive oil in a large skillet. Sauté onion and garlic until translucent.
- Add butternut squash and carrots. Cook for 5-7 minutes, stirring occasionally.
- Stir in peas, thyme, rosemary, salt, and pepper. Sprinkle flour over the vegetables and stir well.
- Slowly add milk, stirring until a thick, creamy sauce forms.
- Add cooked lentils and stir to combine. Adjust seasoning as needed.
- Pour the mixture into a baking dish. Drape puff pastry over the top and trim the edges. Cut a few slits in the crust to vent steam.
- Bake 25 minutes or until pastry is golden brown. Let cool 5 minutes before serving.
Notes
Feel free to substitute other root vegetables or add spinach for extra nutrition. For a vegan version, use plant milk and a dairy-free pastry.