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Delicious Mushroom Spinach Quiche Recipe: Easy, Healthy, and Perfect for Brunch

Quiche is the ultimate combination of elegance and comfort, and this Mushroom Spinach Quiche Recipe takes it to a whole new level. Perfect for breakfast, brunch, or even a light dinner, this recipe combines earthy mushrooms, vibrant spinach, and creamy custard in a flaky crust.

Historically, quiche originates from French cuisine, but modern twists like the Mushroom Spinach Quiche Recipe have become favorites due to their versatility and flavor. This recipe is especially perfect for adding more greens and nutrients to your diet.

In addition to its rich flavor, quiche is an ideal make-ahead dish. You can prepare it the night before and enjoy it warm or cold the next day. Furthermore, it can be customized to suit any preference—add different cheeses, experiment with herbs, or include other vegetables.

Quiches like this one are not only delicious but also nutrient-dense. For instance, spinach is loaded with vitamins and iron, while mushrooms bring antioxidants and a unique umami flavor. Combined with a buttery crust and creamy egg filling, the result is a dish that’s both wholesome and indulgent.

Want to learn more about the history of quiche? Visit The Spruce Eats’ History of Quiche for more insights into its culinary origins.

Ingredients and Required Equipment

Ingredients

For the crust:

  • 1 1/4 cups all-purpose flour
  • 1/2 teaspoon salt
  • 1/2 cup cold unsalted butter, cubed
  • 2-3 tablespoons ice water

Substitution: Use a store-bought pie crust for convenience.

For the filling:

  • 1 tablespoon olive oil or butter
  • 1 cup fresh mushrooms, sliced (e.g., button, cremini, or shiitake)
  • 2 cups fresh spinach, roughly chopped
  • 1 small onion, diced
  • 2 cloves garlic, minced
  • 4 large eggs
  • 1 cup whole milk or heavy cream
  • 1/2 cup shredded cheese (cheddar, Swiss, or gruyère)
  • 1/4 teaspoon ground nutmeg (optional)
  • Salt and pepper to taste

Required Equipment

  • Mixing bowls
  • Rolling pin (for homemade crust)
  • 9-inch pie dish
  • Whisk
  • Skillet or frying pan
  • Measuring cups and spoons

Pro Tip: For quality mushrooms, consider sourcing from specialty stores or farmers’ markets. Check out Mushroom Council’s Guide for tips on selecting the freshest mushrooms.

A slice of mushroom spinach quiche served on a white plate.

Step-by-Step Guide for Making Mushroom Spinach Quiche

1. Prepare the Crust

If making the crust from scratch:

  • Combine flour and salt in a large bowl. Add cold butter and mix with a pastry cutter or your hands until the mixture resembles coarse crumbs.
  • Slowly add ice water, one tablespoon at a time, until the dough comes together. Shape it into a ball, wrap in plastic, and chill for 30 minutes.
  • Roll out the dough on a floured surface and press it into a 9-inch pie dish. Trim the edges, poke holes with a fork, and blind-bake at 375°F (190°C) for 10-15 minutes.

Tip: For a flaky crust, avoid overworking the dough and keep the butter as cold as possible. For more details, check this guide on how to make the perfect pie crust.


2. Prepare the Filling

  • Heat olive oil in a skillet over medium heat. Add diced onions and sauté until soft, about 2-3 minutes.
  • Next, add the sliced mushrooms and cook until they release their water and become golden brown, about 5-7 minutes.
  • Toss in the spinach and minced garlic, stirring until the spinach wilts. Season with salt and pepper, then remove the skillet from heat.

Tip: Cooking the vegetables thoroughly helps prevent excess moisture, which can lead to a soggy quiche.


3. Mix the Egg Custard

  • In a medium bowl, whisk together the eggs, milk (or cream), and a pinch of nutmeg. Add salt and pepper to taste.
  • For a richer custard, incorporate 1/2 cup of your favorite cheese, such as Swiss, cheddar, or gruyère, into the mixture.

Tip: Gently whisk the custard ingredients to avoid air bubbles that can create an uneven texture.


4. Assemble the Quiche

  • Spread the mushroom and spinach mixture evenly over the pre-baked crust.
  • Pour the egg custard on top, ensuring it spreads evenly to cover the filling. Sprinkle a little more cheese over the top for a golden, melty finish.

5. Bake to Perfection

  • Preheat the oven to 375°F (190°C) if it’s not already heated. Place the quiche in the center of the oven and bake for 35-40 minutes or until the center is set but slightly jiggly, and the top is lightly browned.
  • Let the quiche cool for 5-10 minutes before slicing. This resting period allows the filling to firm up.

Tip: For perfect results, avoid overbaking. Residual heat will finish cooking the custard once the quiche is removed from the oven.

For additional techniques, visit Fine Cooking’s Guide to Quiche Baking.


Tips and Tricks for Perfecting Mushroom Spinach Quiche

1. Preventing a Soggy Crust

A soggy crust can ruin the texture of your quiche. To avoid this common issue, you need to create a barrier that protects the crust from absorbing excess moisture.

  • Blind-bake the crust: Pre-bake the crust using pie weights or dried beans for 10-15 minutes. This ensures it begins to crisp before the filling is added.
  • Fully cook and drain the vegetables: Mushrooms and spinach release a significant amount of water during cooking. Therefore, sauté the vegetables thoroughly and drain them well to eliminate excess moisture.
  • Add an egg wash: Brushing the pre-baked crust with whisked egg yolk and baking it for an additional 2 minutes creates a protective seal.

By following these steps, your crust will remain crisp and flaky, even after baking.


2. Achieving the Right Custard Consistency

A smooth and creamy custard is the heart of any great quiche. For perfect results:

  • Stick to the golden ratio of 1 large egg per 1/4 cup of milk or cream. Too much liquid can cause the custard to be runny, while too little leads to a dense texture.
  • Whisk gently: Overmixing introduces air bubbles that may cause an uneven texture or cracks. Combine the eggs and cream just until smooth.
  • Bake until just set: The custard is ready when the edges are firm, but the center still jiggles slightly. Overbaking will make the custard rubbery as the eggs will curdle.

Tip: The custard will continue to cook as it rests, so trust the jiggle test for a perfect texture.


3. Enhancing Flavor with Ingredients

While quiche is versatile, balance is key to achieving great flavor. To elevate your Mushroom Spinach Quiche:

  • Add a pinch of nutmeg to the egg custard for a warm, aromatic undertone.
  • Incorporate garlic or shallots while cooking the vegetables to build a savory flavor base.
  • Experiment with cheeses like gruyère, sharp cheddar, or feta for a creamy, tangy finish that pairs beautifully with mushrooms and spinach.

Tip: Using high-quality cheese ensures the best flavor and texture.


4. Perfecting the Crust

A golden, flaky crust provides the perfect foundation for your quiche. To achieve this:

  • Always use cold butter and handle the dough gently to keep the crust light and airy.
  • Chill the dough before rolling to prevent it from shrinking during baking.
  • If you’re using a store-bought crust, brush it lightly with melted butter for added flavor and a homemade touch.

By following these simple yet effective tips, you’ll avoid common pitfalls and achieve a Mushroom Spinach Quiche that’s flavorful, visually stunning, and irresistibly delicious.

Cheese plays a key role in quiche, offering creaminess and bold flavor. If you enjoy indulgent, cheesy dishes, you might love our Double Cheddar Mac and Cheese, a rich comfort food that complements the quiche perfectly on a brunch table.


Serving and Garnishing Mushroom Spinach Quiche

This Mushroom Spinach Quiche Recipe pairs beautifully with a variety of sides. Serve it with a crisp green salad or buttery rolls for a well-rounded meal. Additionally, the Mushroom Spinach Quiche Recipe can be enjoyed warm, at room temperature, or chilled, making it versatile for any occasion.

Complementary Side Dishes

  • A fresh green salad with a light vinaigrette adds brightness and balances the richness of the quiche.
  • For a heartier meal, serve with roasted vegetables like asparagus, cherry tomatoes, or sweet potatoes.
  • A bowl of seasonal fruit or a refreshing fruit salad works well for brunch.
  • Add a warm, crusty bread or garlic toast to round out the meal.

Creative Garnishing Ideas
To make your quiche visually appealing:

  • Top the baked quiche with fresh herbs like parsley, basil, or chives for a burst of color.
  • Sprinkle grated Parmesan or crumbled feta on top just before serving for added flavor.
  • For an elegant touch, plate individual slices with microgreens or a drizzle of balsamic glaze.

Likewise, presenting your quiche in smaller portions—such as mini quiches or tartlets—makes it ideal for parties or buffets. You can also serve it in wedges on decorative plates for a more upscale presentation.

Pairing the quiche with complementary sides enhances its appeal. For a balanced brunch, serve it with a fresh salad or some warm, buttery rolls. Our Easy Homemade Rolls are a perfect addition, offering a light and fluffy texture to complement the richness of the quiche.”


Common Mistakes to Avoid When Preparing Mushroom Spinach Quiche

While the classic Mushroom Spinach Quiche Recipe is flavorful on its own, you can experiment with other ingredients. For example, substitute mushrooms with zucchini or bell peppers for a different twist. However, the balance of spinach and mushrooms in the traditional Mushroom Spinach Quiche Recipe remains unmatched.


1. Overbaking the Filling

One of the most frequent mistakes is overbaking the quiche, which results in a rubbery, cracked custard. However, quiche custard is delicate and continues to set after being removed from the oven. To avoid overbaking:

  • Bake until the edges are firm, but the center still jiggles slightly.
  • Moreover, remember that residual heat will finish cooking the custard as it rests.

Tip: Always keep a close eye on the quiche in the final minutes of baking to avoid drying it out.


2. Undercooking the Crust

An underbaked crust can lead to a soggy and doughy texture, which diminishes the quiche’s appeal. For this reason, blind-baking is crucial. To fix this:

  • First, pre-bake the crust with pie weights for 10-15 minutes before adding the filling.
  • Additionally, if you’re using a store-bought crust, position the quiche on the lower oven rack to ensure the bottom crisps evenly.

For detailed pie-crust techniques, check out this guide on Proper Pie Crust Baking.


3. Excess Moisture in the Filling

A watery filling is another common issue, often caused by uncooked or poorly drained vegetables. Consequently, too much moisture interferes with the custard’s texture. To prevent this:

  • Sauté mushrooms and spinach thoroughly to allow excess water to evaporate.
  • After cooking, drain the vegetables completely before combining them with the custard.

For example, pressing cooked spinach with a paper towel removes any lingering liquid and ensures the filling remains firm and creamy.


4. Poor Ingredient Balance

A great quiche relies on the perfect balance between custard, vegetables, and flavorings. On the other hand, adding too many vegetables or strong seasonings can throw off this harmony. To achieve the ideal balance:

  • Stick to the correct ratio: approximately 1 part filling to 1 part custard.
  • Additionally, use cheese, herbs, or spices sparingly to enhance, not overwhelm, the dish.

Tip: A pinch of nutmeg or a sprinkle of gruyère cheese adds depth without overpowering the other ingredients.


By avoiding these common mistakes, you’ll consistently create a Mushroom Spinach Quiche with a flaky crust, creamy filling, and perfectly balanced flavors. In short, attention to detail and a few small adjustments will take your quiche-making skills to the next level!

FAQs

1. Can I make Mushroom Spinach Quiche ahead of time?
Yes, you can! Quiche is a fantastic make-ahead dish. Prepare and bake the quiche as instructed, then allow it to cool completely. You can store it in the refrigerator for up to 3 days. To serve, reheat it in a 350°F (175°C) oven for 10-15 minutes until warmed through.

2. How do I store leftover quiche?
To store leftover quiche, let it cool to room temperature, then cover it tightly with plastic wrap or place it in an airtight container. Keep it in the refrigerator for 3-4 days. For longer storage, freeze individual slices, tightly wrapped, for up to 2 months. Thaw overnight in the refrigerator before reheating.

3. What’s the best type of mushrooms to use in quiche?
The best mushrooms are those with a rich, earthy flavor, such as cremini, button, or shiitake mushrooms. For example, cremini mushrooms add a meaty texture, while shiitake mushrooms provide a more intense umami flavor. Thus, you can mix different varieties for added depth.

4. Does spinach need to be cooked before putting it in quiche?
Yes, spinach should be cooked to release excess water. Adding raw spinach could make the quiche watery and affect the custard’s consistency.

5. Is heavy cream or milk better for quiche?
Heavy cream is better for a richer and creamier custard, but milk can be used for a lighter texture. A combination of both often works best.

6. Should I prebake the crust for quiche?
Absolutely! Prebaking the crust ensures it remains crispy and prevents it from getting soggy once the filling is added.


Conclusion: 

In conclusion, this Mushroom Spinach Quiche is a delightful, versatile dish that combines rich flavors and wholesome ingredients. Whether you’re serving it for a cozy family brunch, an elegant dinner, or as a meal-prep option, this recipe is sure to impress. With its flaky crust, creamy custard, and savory filling of spinach and mushrooms, it’s the perfect blend of taste and nutrition.

All things considered, quiche is not only easy to make but also endlessly customizable. You can add your favorite cheeses, experiment with herbs, or include other vegetables for a personal twist. Finally, the convenience of making it ahead of time or freezing leftovers makes it a go-to recipe for busy schedules.

We encourage you to try this Mushroom Spinach Quiche and share your results with family, friends, or online communities. Let us know how it turned out and any creative variations you made! Cooking should be enjoyable, and this quiche is a wonderful way to explore your culinary creativity.

So, preheat that oven, roll out your crust, and get ready to enjoy a slice of this savory masterpiece. Happy cooking!

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