Mini Mushroom and Gruyere Pot Pies

When the mushrooms hit the skillet, they give off more liquid than you’d expect. Keep cooking, and that puddle disappears; the mushrooms turn brown and the whole kitchen smells savory. That’s the moment these mini mushroom and Gruyere pot pies start to feel like more than mushrooms tucked under pastry.

I make the filling in one skillet, then spoon it into individual ramekins and cover each one with a cold puff pastry round. Gruyere melts into the cream sauce, while thyme and garlic keep the filling earthy rather than heavy. The pastry puffs into a golden lid, and each ramekin holds its own generous portion of bubbling mushroom filling.

Why These Mushroom Pies Need a Dry Skillet Before the Cream Goes In

Mushrooms release plenty of moisture as they cook. If you add the broth and cream while that liquid is still pooling in the skillet, the sauce has to fight its way through extra water, and the mushrooms taste more simmered than browned. Cooking the mushrooms until their released liquid evaporates gives them concentrated, savory flavor before the sauce is even started.

That dry-skillet stage also helps the finished filling stay thick enough to sit under puff pastry. The flour cooks briefly with the garlic and mushrooms, then the broth and cream are stirred in gradually. As the mixture simmers, it thickens into a sauce that clings to the mushrooms instead of sloshing around beneath the pastry. Gruyere melts in off the heat, adding richness without asking the sauce to boil with cheese in it. Those small choices give each ramekin a creamy filling that holds together when you dig in.

What the Mushrooms, Gruyere, and Pastry Bring to Each Pie

• Cremini mushrooms — They have a deeper, earthier taste than white button mushrooms, which gives the filling its savory backbone. Choose firm mushrooms with dry caps; the inexpensive whole ones work well here. White button mushrooms can stand in at the same weight, though their flavor is milder. Slice them evenly so they cook at roughly the same pace.
• Gruyere — Its nutty flavor and smooth melt suit the cream sauce without hiding the mushrooms. A block grated at home melts more evenly than pre-shredded cheese, but the less expensive pre-grated kind is convenient. Swiss cheese is the closest easy swap; it keeps the melt soft, with a milder taste.
• Frozen puff pastry — This is what makes the lid rise into crisp, distinct layers. An all-butter pastry usually tastes richer, but any good-quality frozen pastry works. Thaw it until it unfolds without cracking, then keep it cold; refrigerated pie dough can cover the ramekins too, but the tops will be more tender and less lofty.
• Heavy cream and vegetable broth — Cream gives the filling body, while low-sodium broth adds savory flavor without overwhelming the cheese. A carton of broth is fine; choose one you like the taste of because it becomes part of the sauce. Half-and-half can replace the cream for a lighter sauce, though the finished filling will be less rich.
• Fresh thyme — Its woodsy, lightly floral flavor balances the mushrooms and Gruyere. Fresh leaves are worth using when you have them; if not, dried thyme works, but use less because it is more concentrated.

From Browning the Mushrooms to Sealing a Flaky Lid

Soften the onion before adding the mushrooms

Heat the oven to 400°F and set six 8-ounce ramekins on a rimmed baking sheet. Melt the butter in a 12-inch skillet over medium heat, add the finely chopped onion, and cook for 3 minutes, stirring occasionally. The onion should soften without taking on much color. This gives it time to turn sweet and tender before the mushrooms go in.

Cook off the mushroom liquid

Add the sliced cremini mushrooms, kosher salt, black pepper, and fresh thyme. Cook for 8 to 10 minutes, stirring occasionally, until the mushrooms are browned and the liquid they released has evaporated. You should see the skillet’s surface again rather than a watery layer collecting around the mushrooms. Stir in the minced garlic and cook for 30 seconds, just until fragrant.

Thicken the filling, then melt in the cheese

Stir the flour through the mushroom mixture and cook it for 1 minute so it coats the mushrooms. Gradually stir in the vegetable broth and heavy cream, then bring the mixture to a simmer. Cook for 3 to 5 minutes, stirring, until the sauce has thickened; a spoon dragged through it should leave a brief trail. Remove the skillet from the heat, stir in the grated Gruyere, and let the filling cool for 10 minutes.

Fit the pastry over each ramekin

Divide the cooled filling evenly among the ramekins. Unfold the pastry and cut six rounds large enough to overhang each rim by about 1/2 inch, rerolling scraps as needed. Whisk the egg with the water, brush the ramekin rims, then place a pastry round over each one and press its edges onto the rim. Cut a small vent in every top and brush the pastry with the remaining egg wash.

Bake until puffed and bubbling

Bake the pot pies for 20 to 25 minutes. Look for pastry that has puffed and turned golden brown, with filling bubbling at the edges. If one ramekin browns a little faster than another, use the pastry and bubbling as your cues rather than expecting every top to look identical. Let the pies rest for 5 minutes before serving.

Easy Swaps for a Different Spin on These Pot Pies

Questions That Come Up With Individual Mushroom Pot Pies

Mini Mushroom and Gruyere Pot Pies

Mini mushroom and Gruyere pot pies bake in individual ramekins with a creamy, savory filling and puffed, golden-brown pastry tops. Thyme and browned cremini mushrooms add rich flavor, while Gruyere melts into the bubbling filling.

Print Recipe Pin Recipe

Prep Time 20 minutes mins

Cook Time 40 minutes mins

Cooling and resting 15 minutes mins

Total Time 1 hour hr 15 minutes mins

Servings: 6 servings

Course: Dinner

Cuisine: American

Calories: 550

Ingredients Equipment Method Notes

Ingredients

  

For the filling

• 2 tbsp unsalted butter
• 1 yellow onion small, finely chopped
• 1 lb cremini mushrooms sliced
• 0.5 tsp kosher salt
• 0.25 tsp black pepper
• 1 tsp thyme leaves fresh
• 2 cloves garlic minced
• 2 tbsp all-purpose flour
• 1.5 cups low-sodium vegetable broth
• 0.5 cup heavy cream
• 4 oz Gruyere cheese grated (about 1 cup)

For the pastry topping

• 1 package (17.3 oz) frozen puff pastry thawed but still cold
• 1 egg large
• 1 tbsp water

Equipment

• 6 8-ounce ramekins
• 1 12-inch skillet
• 1 rimmed baking sheet

Method

 

Make the filling

1. Heat the oven to 400°F.
2. Arrange six 8-ounce ramekins on a rimmed baking sheet.
3. Melt the butter in a 12-inch skillet over medium heat, add the onion, and cook for 3 minutes, stirring occasionally.
4. Add the mushrooms, salt, pepper, and thyme; cook for 8 to 10 minutes, stirring occasionally, until the mushrooms are browned and their released liquid has evaporated.
5. Stir in the garlic and cook for 30 seconds.
6. Stir in the flour and cook for 1 minute.
7. Gradually stir in the vegetable broth and cream, bring to a simmer, and cook for 3 to 5 minutes, stirring, until thickened.
8. Remove from the heat and stir in the Gruyere.
9. Let the filling cool for 10 minutes.

Assemble and bake

1. Divide the filling evenly among the ramekins.
2. Unfold the puff pastry and cut six rounds large enough to overhang the ramekin rims by about 1/2 inch, rerolling scraps as needed.
3. Whisk the egg with the water.
4. Brush the ramekin rims with the egg wash.
5. Place a pastry round over each ramekin and press the edges onto the rims.
6. Cut a small vent in each top and brush with the remaining egg wash.
7. Bake for 20 to 25 minutes, until the pastry is puffed and golden brown and the filling is bubbling.
8. Let the pot pies rest for 5 minutes before serving.

Notes

Keep the puff pastry cold until ready to cut for the best puff. Refrigerate leftovers for up to 3 days; baked pot pies can be frozen for up to 2 months. For a gluten-free variation, use gluten-free flour and gluten-free puff pastry.