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Mushroom and Gruyère Quiche Recipe


  • Author: Cleo
  • Total Time: 90 minutes
  • Yield: 6 servings 1x
  • Diet: Vegetarian

Description

This savory Mushroom and Gruyère Quiche features a flaky pie crust filled with a flavorful mix of roasted Portobello and Shiitake mushrooms, caramelized onions, fresh thyme, and rich Gruyère cheese, all bound together with a creamy egg custard. Perfect for brunch, lunch, or a light dinner, this quiche offers a comforting and elegant way to enjoy earthy mushrooms and melty cheese.


Ingredients

Scale

Vegetables

  • 0.5 pound Portobello Mushrooms
  • 0.25 pound Shiitake Mushrooms
  • 1/2 Yellow Onion

Other

  • 2 Free Range Eggs
  • 1 9-inch Pie Crust
  • 1/2 cup Heavy Cream
  • 1 tablespoon Fresh Thyme
  • 4 ounces Gruyère Cheese

Seasonings and Oil

  • 1 tablespoon Extra-Virgin Olive Oil
  • 1/2 teaspoon Fine Sea Salt
  • 1/2 teaspoon Ground Black Pepper

Instructions

  1. Preheat oven: Set your oven to 400°F (200°C) to prepare for roasting the mushrooms and pre-baking the pie crust.
  2. Roast mushrooms and onions: In a large bowl, toss the Portobello mushrooms, Shiitake mushrooms, and chopped yellow onion with extra-virgin olive oil, sea salt, and black pepper. Spread the mixture in a single layer on a baking sheet. Roast for about 15 minutes until the vegetables are cooked through and lightly golden. Remove from oven and set aside.
  3. Pre-bake pie crust: Prick the 9-inch pie crust all over with a fork to prevent bubbling. Place it on a baking sheet and bake in the 400°F oven for 10-15 minutes until lightly browned. Remove from oven and reduce oven temperature to 350°F (180°C).
  4. Prepare custard: Whisk together the heavy cream, eggs, fresh thyme, additional salt, and pepper in a bowl until well combined.
  5. Assemble quiche: In a large bowl, combine the roasted mushrooms and onions with Gruyère cheese. Spread the mixture evenly into the pre-baked pie crust. Pour the cream and egg custard mixture over the filling, pressing down gently to ensure the mushrooms are submerged in the custard.
  6. Bake quiche: Bake at 350°F for 45-60 minutes, until the custard is set in the center and the edges of the crust are golden brown. Remove from oven and let cool slightly before serving.

Notes

  • Use fresh herbs like thyme or substitute with rosemary for additional flavor.
  • Make sure the pie crust is pre-baked to avoid a soggy bottom.
  • Allow the quiche to cool for at least 10 minutes to set properly before slicing.
  • Optional: Add a pinch of nutmeg to the custard for extra warmth.
  • This quiche can be served warm or at room temperature.
  • Prep Time: 20 minutes
  • Cook Time: 70 minutes
  • Category: Main Dish
  • Method: Baking
  • Cuisine: French

Keywords: mushroom quiche, gruyere quiche, vegetarian quiche, savory pie, brunch recipe, easy quiche