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Spinach and Feta Stuffed Chicken Breast Recipe

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4.6 from 54 reviews

This delightful Mushroom and Gruyère Stuffed Puff Pastry recipe features a savory blend of sautéed mushrooms, onions, garlic, and fresh thyme, combined with rich Gruyère cheese, all wrapped in golden, flaky puff pastry. Perfect as an elegant appetizer or a savory snack, these pastries deliver a wonderful combination of earthy flavors and buttery crispness with every bite.

Ingredients

Pastry

  • 1 sheet puff pastry, thawed

Filling

  • 2 cups mushrooms, finely chopped (such as cremini or button)
  • 1/2 cup Gruyère cheese, grated
  • 1/2 cup onion, finely chopped
  • 2 cloves garlic, minced
  • 2 tablespoons butter
  • 1 tablespoon fresh thyme, chopped
  • Salt and pepper to taste

Finishing

  • 1 egg (for egg wash)

Instructions

  1. Preheat Oven: Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper to prepare for baking the pastries.
  2. Sauté Vegetables: In a skillet, melt the butter over medium heat. Add the finely chopped onions and minced garlic, sautéing until translucent and fragrant. Then add the chopped mushrooms, fresh thyme, salt, and pepper. Cook until the mushrooms are tender and all the liquid has evaporated. Remove from heat and let the mixture cool slightly to prevent pastry sogginess.
  3. Prepare Puff Pastry: On a lightly floured surface, roll out the thawed puff pastry sheet and cut it into 4-inch squares, creating individual bases for the stuffed pastries.
  4. Fill Pastry: Spoon a portion of the cooled mushroom mixture onto the center of each pastry square. Top each mound with a generous sprinkle of grated Gruyère cheese for a rich, creamy flavor.
  5. Seal Pastries: Fold the corners of each puff pastry square over the filling to form a pocket or envelope shape. Pinch the edges tightly to seal the filling inside, preventing leaks during baking.
  6. Apply Egg Wash: Beat the egg thoroughly and brush it evenly over the surface of each pastry. This will give the pastries a beautiful golden-brown and glossy finish once baked.
  7. Bake: Arrange the sealed pastries on the lined baking sheet and bake in the preheated oven for 15-20 minutes, or until the puff pastry is evenly golden brown and puffed up.
  8. Serve Warm: Remove the pastries from the oven and serve warm to enjoy the full flavors and flaky textures.

Notes

  • Make sure the mushroom mixture is cooled before filling the pastry to prevent the dough from becoming soggy.
  • Gruyère cheese can be substituted with Swiss or mozzarella if desired.
  • You can prepare the filling a day ahead and store it in the refrigerator to save time.
  • For a dairy-free version, replace butter with a plant-based alternative and use a vegan cheese substitute.
  • Ensure puff pastry is thoroughly thawed before rolling for best results.