Spinach Mushroom Quiche Recipe

This Spinach Mushroom Quiche recipe isn’t just a dish in our home; it’s become a symbol of cozy brunches, satisfying light dinners, and the go-to offering for potlucks where I want to bring something both elegant and universally loved. The first time I made it, I was a little nervous – quiches can seem intimidating! But the aroma that filled the kitchen as it baked, a rich tapestry of savory custard, earthy mushrooms, and tender spinach, was an instant reassurance. When I finally pulled that golden-brown masterpiece from the oven, with its perfectly set filling and flaky crust, I knew it was a winner. My family devoured it, praising the creamy texture and the delicious balance of flavors. Even my pickiest eater asked for seconds! Since then, it’s been a staple, a recipe I’ve tweaked and perfected, and one that never fails to impress. It’s surprisingly simple to make, yet it feels so sophisticated.

The Ultimate Spinach Mushroom Quiche: A Culinary Hug

Quiche, at its heart, is a savory open-faced pastry crust with a filling of custard made from eggs and cream or milk, along with other ingredients like cheese, meat, seafood, or vegetables. This particular Spinach and Mushroom Quiche is a vegetarian delight, showcasing the classic pairing of earthy mushrooms and vibrant spinach, all enveloped in a rich, creamy custard and baked in a buttery, flaky crust. It’s the kind of dish that’s perfect for any meal – a star at brunch, a light yet satisfying lunch, or an elegant appetizer for a dinner party.

What makes this recipe stand out is its balance. The bitterness of the spinach is perfectly offset by the umami of the mushrooms and the richness of the cheese and custard. The textures play wonderfully together: the crispness of the crust, the tenderness of the vegetables, and the smooth, yielding custard. It’s a recipe that invites adaptation – feel free to experiment with different cheeses or add a pinch of your favorite herbs.

Complete Recipe: Spinach Mushroom Quiche

This recipe yields a standard 9-inch quiche, perfect for sharing.

For the Pie Crust (or use 1 store-bought 9-inch deep-dish pie crust):

• 1 ¼ cups (150g) all-purpose flour
• ½ teaspoon salt
• ½ cup (113g) unsalted butter, very cold and cubed
• 3-5 tablespoons ice water

For the Spinach Mushroom Filling:

• 1 tablespoon olive oil or unsalted butter
• 8 ounces (225g) cremini or button mushrooms, cleaned and sliced
• 1 small yellow onion, finely chopped (about ½ cup)
• 2 cloves garlic, minced
• 5 ounces (140g) fresh baby spinach (or 10 oz frozen, thawed and thoroughly squeezed dry)
• 4 large eggs
• 1 cup (240ml) heavy cream
• ½ cup (120ml) whole milk
• 1 cup (100g) shredded Gruyère cheese (Swiss, cheddar, or a mix also work well)
• ½ teaspoon salt, or to taste
• ¼ teaspoon black pepper, or to taste
• ⅛ teaspoon freshly grated nutmeg (optional, but highly recommended)
• Pie weights or dried beans for blind baking

Instructions: Crafting Your Perfect Quiche

Follow these steps carefully for a quiche that will have everyone asking for the recipe.

Step 1: Prepare the Pie Crust (if making from scratch)

1. Combine Dry Ingredients: In a large bowl, whisk together the flour and salt.
2. Cut in Butter: Add the cold, cubed butter to the flour mixture. Using a pastry blender or your fingertips, cut the butter into the flour until the mixture resembles coarse crumbs with some pea-sized pieces of butter remaining.
3. Add Ice Water: Sprinkle 3 tablespoons of ice water over the mixture. Gently mix with a fork until the dough just starts to come together. If it’s too dry, add more ice water, 1 teaspoon at a time, until the dough holds together when pressed. Be careful not to overmix.
4. Chill Dough: Form the dough into a flat disc, wrap it tightly in plastic wrap, and refrigerate for at least 30 minutes (or up to 2 days). This allows the gluten to relax and the fat to firm up, resulting in a tender, flaky crust.
5. Roll Out Dough: On a lightly floured surface, roll out the chilled dough into a 12-inch circle, about ⅛-inch thick.
6. Transfer to Pie Dish: Carefully transfer the dough to a 9-inch deep-dish pie plate. Gently press the dough into the bottom and up the sides of the dish. Trim any excess dough, leaving about a ½-inch overhang. Crimp or flute the edges as desired.
7. Chill Again: Place the pie crust in the freezer for 15-20 minutes or in the refrigerator for at least 30 minutes to firm up. This helps prevent shrinkage during baking.

Step 2: Blind Bake the Crust

Blind baking is crucial for a crisp quiche crust, preventing a soggy bottom.

1. Preheat Oven: Preheat your oven to 375°F (190°C).
2. Prepare for Baking: Line the chilled pie crust with parchment paper, ensuring it covers the bottom and sides. Fill the parchment paper with pie weights, dried beans, or uncooked rice, distributing them evenly.
3. First Bake: Bake for 15-20 minutes, or until the edges of the crust are lightly golden.
4. Remove Weights: Carefully remove the parchment paper and weights. Prick the bottom of the crust a few times with a fork.
5. Second Bake: Return the crust to the oven and bake for another 5-7 minutes, or until the bottom is lightly golden and looks dry.
6. Cool Slightly: Remove the crust from the oven and let it cool slightly on a wire rack while you prepare the filling. Reduce oven temperature to 350°F (175°C).

Step 3: Prepare the Spinach Mushroom Filling

1. Sauté Aromatics and Mushrooms: Heat the olive oil or butter in a large skillet over medium heat. Add the chopped onion and cook until softened and translucent, about 5-7 minutes. Add the minced garlic and sliced mushrooms. Cook, stirring occasionally, until the mushrooms have released their liquid and are nicely browned, about 8-10 minutes. Season lightly with salt and pepper.
2. Wilt Spinach: If using fresh spinach, add it to the skillet in batches, stirring until it wilts down completely. This may take a few minutes. If using frozen spinach (thawed and squeezed very dry), add it to the skillet and cook for 2-3 minutes to heat through and evaporate any remaining moisture.
3. Drain Excess Liquid: It’s very important to remove as much moisture as possible from the cooked vegetables. You can tilt the pan and press the mixture with a spoon to drain off any liquid, or even transfer the mixture to a fine-mesh sieve and press gently. Excess moisture will result in a watery quiche.
4. Assemble the Base: Spread the cooked spinach and mushroom mixture evenly over the bottom of the pre-baked pie crust. Sprinkle the shredded Gruyère cheese (or your cheese of choice) evenly over the vegetables.

Step 4: Prepare the Custard and Bake

1. Whisk Custard: In a medium bowl, whisk together the eggs until well combined. Gradually whisk in the heavy cream and whole milk. Add the salt, pepper, and freshly grated nutmeg (if using). Whisk until everything is smoothly incorporated.
2. Pour Custard: Carefully pour the egg mixture over the vegetables and cheese in the pie crust. Pour slowly to allow the custard to settle without dislodging the filling too much.
3. Bake the Quiche: Place the quiche on a baking sheet (to catch any potential spills) and carefully transfer it to the preheated 350°F (175°C) oven.
4. Check for Doneness: Bake for 35-45 minutes, or until the custard is set and the top is lightly golden brown. The center should be just barely set; it will continue to cook slightly as it cools. It should have a slight jiggle but not be liquid. An instant-read thermometer inserted near the center should register 165-175°F (74-79°C).
5. Cool and Rest: Remove the quiche from the oven and let it cool on a wire rack for at least 15-20 minutes before slicing and serving. This resting period allows the custard to fully set, making it easier to slice neatly.

Nutrition Facts

• Servings: 6-8 slices
• Calories per serving (approximate, based on 8 servings): 380-450 calories

(Note: Nutritional information is an estimate and can vary based on specific ingredients used, particularly the type of pie crust and cheese.)

Preparation Time

• Active Preparation Time (Crust from scratch & Filling): 45-60 minutes
• Crust Chilling Time: At least 45 minutes (30 min for dough, 15 min for lined shell)
• Blind Baking Time: 20-27 minutes
• Filling Bake Time: 35-45 minutes
• Resting Time: 15-20 minutes
• Total Time (approximate, with homemade crust): 2 hours 45 minutes to 3 hours 15 minutes
• Total Time (approximate, with store-bought crust): 1 hour 30 minutes to 1 hour 45 minutes

How to Serve Your Spinach Mushroom Quiche

This versatile quiche can be the star of many meals. Here are some serving suggestions:

• For Brunch:
  • Serve warm or at room temperature.
  • Pair with a fresh fruit salad (berries, melon, grapes).
  • Alongside crispy bacon or breakfast sausages.
  • With a side of roasted breakfast potatoes or hash browns.
  • Offer a mimosa or a sparkling fruit juice.
• For Lunch:
  • Serve a generous slice with a simple green salad dressed with a light vinaigrette.
  • Accompany with a cup of tomato soup or a light vegetable soup.
  • Pair with a crusty bread roll or a slice of artisan sourdough.
• For a Light Dinner:
  • Serve with steamed asparagus or green beans.
  • Pair with a more substantial salad, perhaps with added nuts, seeds, or grains.
  • Enjoy with a glass of crisp white wine like Sauvignon Blanc or Pinot Grigio.
• As an Appetizer or for Parties:
  • Cut the quiche into smaller, bite-sized squares or wedges.
  • Arrange on a platter for easy self-service.
• Garnishes:
  • A sprinkle of fresh chopped chives or parsley before serving adds a touch of color and freshness.
  • A dollop of crème fraîche or sour cream can add an extra layer of richness if desired.

Additional Tips for Quiche Perfection

1. Don’t Skip Blind Baking: This is the golden rule for a non-soggy quiche. Pre-baking the crust creates a barrier that prevents the wet custard filling from seeping in and making the bottom doughy.
2. Squeeze That Spinach Dry!: Whether using fresh wilted spinach or thawed frozen spinach, excess water is the enemy of a good quiche. Squeeze out as much liquid as humanly possible. The same goes for mushrooms; cook them until their liquid has evaporated.
3. Cheese Choices Matter: Gruyère is classic for its nutty, slightly sweet flavor that melts beautifully. However, Swiss, Emmental, sharp cheddar, Monterey Jack, or even a bit of Parmesan or goat cheese can be delicious. Use good quality cheese that you enjoy.
4. Don’t Overbake the Custard: The quiche is done when the edges are set and the center is just barely jiggly. It will continue to cook and firm up as it rests. Overbaking can lead to a rubbery texture and can cause the custard to crack.
5. Let it Rest: Resist the urge to slice into the quiche straight from the oven. Resting for at least 15-20 minutes allows the custard to set completely, ensuring clean slices and preventing the filling from oozing out.

FAQ Section: Your Quiche Questions Answered

Q1: Can I make this quiche crustless?
A1: Absolutely! To make a crustless spinach mushroom quiche (often called a frittata baked in a pie dish), simply grease your pie dish well and pour the vegetable and custard mixture directly into it. You may need to reduce the baking time slightly, so start checking for doneness around 25-30 minutes.

Q2: Can I use a store-bought pie crust?
A2: Yes, a store-bought refrigerated or frozen pie crust is a great time-saver. Be sure to get a deep-dish 9-inch crust if possible. Follow the package instructions for pre-baking (blind baking) if provided, or use the blind baking steps outlined in this recipe.

Q3: How do I store leftover quiche?
A3: Let the quiche cool completely, then cover it tightly with plastic wrap or aluminum foil, or transfer slices to an airtight container. Store it in the refrigerator for up to 3-4 days.

Q4: Can I freeze this quiche?
A4: Yes, quiche freezes surprisingly well. Bake and cool the quiche completely. You can freeze it whole or in individual slices. Wrap it tightly in plastic wrap, then a layer of aluminum foil, or place it in a freezer-safe container or bag. It can be frozen for up to 2-3 months. Thaw overnight in the refrigerator before reheating. Note that the texture of the custard might be slightly different after freezing and thawing, but it will still be delicious.

Q5: How do I reheat quiche?
A5: The best way to reheat quiche to maintain its texture is in the oven. Preheat your oven to 325-350°F (160-175°C). Place the quiche (or slices) on a baking sheet, loosely cover with foil to prevent over-browning, and heat for 15-25 minutes, or until warmed through. You can also reheat individual slices in a microwave, but the crust may become less crisp.

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