Description

This savory spinach & mushroom quiche combines a flaky crust, earthy mushrooms, tender spinach, and creamy Gruyère in a rich egg custard. Perfect for breakfast, brunch, or a light dinner, this quick and versatile dish is both satisfying and nutritious.

Ingredients

For the Filling:

Extra-virgin olive oil: 2 tablespoons
Fresh mixed wild mushrooms (sliced): 8 ounces
Sweet onion (thinly sliced): 1 ½ cups
Garlic (thinly sliced): 1 tablespoon
Baby spinach (coarsely chopped): 5 ounces (about 8 cups)

For the Egg Mixture:

Large eggs: 6
Whole milk: ¼ cup
Half-and-half: ¼ cup
Dijon mustard: 1 tablespoon
Fresh thyme leaves: 1 tablespoon (plus extra for garnish)
Salt: ¼ teaspoon
Ground pepper: ¼ teaspoon
Shredded Gruyère cheese: 1 ½ cups

Optional Crust:

Store-bought pie crust or homemade crust (blind-baked as per package instructions)

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Instructions

Preheat Your Oven

Preheat the oven to 375°F (190°C).
Grease a 9-inch pie pan with cooking spray if making a crustless quiche or line with a prepared pie crust.

2. Sauté the Vegetables

Heat olive oil in a large skillet over medium heat.
Add sliced mushrooms and cook for about 8 minutes, stirring occasionally, until browned and tender.
Add onion and garlic, cooking for another 5 minutes until softened.
Stir in the spinach and cook for 1-2 minutes until wilted. Remove from heat and set aside to cool slightly.

3. Prepare the Egg Mixture

In a medium bowl, whisk together eggs, milk, half-and-half, Dijon mustard, thyme, salt, and pepper.
Stir in the shredded Gruyère cheese and the cooked vegetable mixture.

4. Assemble the Quiche

Pour the egg mixture into the prepared pie pan or over the crust.
Spread the filling evenly using a spatula.

5. Bake the Quiche

Bake in the preheated oven for 30-35 minutes, or until the quiche is set in the center and golden brown on top.

6. Cool and Serve

Let the quiche rest for 10 minutes before slicing. Garnish with fresh thyme and serve warm.

Notes

If using frozen spinach, ensure it is thawed and thoroughly drained to avoid excess moisture.
For added depth, sprinkle a pinch of nutmeg into the egg mixture.
This quiche can be made crustless for a lighter option—simply grease the pie pan well before pouring in the filling.

Prep Time: 15 minutes
Cook Time: 35 minutes
Category: Main Dish
Method: Baking
Cuisine: French