Spinach Mushroom Quiche Recipe

There's something magical about pulling a warm, golden-brown quiche from the oven. The aroma of buttery crust, sautéed mushrooms, and creamy eggs fills the kitchen, instantly making it feel like home.

this Recipe

I first discovered this spinach mushroom quiche during a Sunday brunch experiment. Since then, it’s become a staple in my house for its perfect balance of rich flavors and simple preparation. Whether for breakfast, brunch, or a light dinner, it never disappoints. Let’s dive right into why you’ll fall in love with this recipe.

Why You'll Love This Spinach Mushroom Quiche

Get ready to make this recipe your new go-to for nearly any meal. This spinach mushroom quiche has everything you love in a comfort dish while staying accessible for even the busiest cooks.

First, it's incredibly easy to prepare. With just a handful of ingredients and straightforward steps, you'll have a beautiful quiche on the table in under an hour. No need for complicated techniques or fancy equipment.

It’s wonderfully budget-friendly too. Most of the ingredients—eggs, cheese, mushrooms, and spinach—are pantry or fridge staples, keeping your grocery bill pleasantly low while delivering restaurant-quality flavor.

The versatility is unmatched. You can serve it hot, warm, or cold, and it pairs beautifully with a simple side salad, fresh fruit, or even soup. Plus, it works equally well for breakfast, brunch, lunch, or dinner.

And finally, it's a crowd-pleaser. The creamy, savory filling and flaky crust appeal to both kids and adults, making it a reliable option for family gatherings or meal prepping for the week ahead.

Now that you know why this quiche deserves a spot in your recipe rotation, let’s talk about the ingredients that bring it all together.

Ingredients Notes

The beauty of this spinach mushroom quiche lies in its balance of simple, fresh ingredients that deliver big on flavor. Each element plays an important role in achieving the perfect texture and taste.

The pie crust forms the foundation of the quiche. You can use a store-bought crust for convenience or make your own from scratch if you’re feeling ambitious. A flaky, buttery crust supports the creamy filling and provides a satisfying bite.

The mushrooms add an earthy depth that perfectly complements the spinach. I typically use cremini or baby bella mushrooms for their rich flavor, but white button mushrooms work well too. Be sure to sauté them thoroughly to release moisture and concentrate their taste.

The fresh spinach brings a vibrant color and subtle freshness to the quiche. While you can use frozen spinach in a pinch, fresh spinach sautéed just until wilted offers a superior texture and brighter flavor.

The eggs and dairy create the silky custard that holds everything together. I prefer using whole milk combined with a bit of heavy cream for richness without being overly heavy. The eggs provide structure while allowing the filling to remain tender and light.

Finally, cheese adds a creamy, savory element. Gruyère is my favorite for its nutty flavor and excellent melting properties, but Swiss or even a sharp cheddar can be used depending on your taste preferences.

You won’t need any fancy equipment—just a good skillet for sautéing, a mixing bowl, and a 9-inch pie dish to bake your quiche to perfection.

How To Make This Spinach Mushroom Quiche

Making this spinach mushroom quiche is a simple, rewarding process that fills your home with inviting aromas and delivers a beautiful result every time.

Start by preheating your oven to 375°F (190°C). If you're using a store-bought crust, place it into your pie dish and pre-bake it for about 10 minutes to prevent sogginess later. This step ensures a crisp, flaky bottom that holds up well to the creamy filling.

While the crust is baking, heat a tablespoon of olive oil in a large skillet over medium heat. Add sliced mushrooms and sauté them until they release their moisture and become golden brown, about 6-8 minutes. This step is crucial to avoid a watery filling. Once the mushrooms are nearly done, add the fresh spinach and cook just until wilted. Remove the skillet from heat and let the mixture cool slightly.

In a large mixing bowl, whisk together the eggs, milk, and heavy cream until fully combined. Stir in the shredded Gruyère cheese, and season the mixture with salt, pepper, and a pinch of nutmeg to enhance the flavor profile.

Once the crust and mushroom-spinach mixture have cooled slightly, spread the vegetables evenly over the bottom of the crust. Carefully pour the egg mixture over the top, ensuring it fills all the nooks and crannies without overflowing.

Place the quiche in the oven and bake for 35-40 minutes, or until the center is set and the top is lightly golden. You can test for doneness by inserting a knife into the center—it should come out clean. Let the quiche rest for at least 10 minutes before slicing, allowing the custard to firm up for perfect, clean slices.

From start to finish, you’re looking at about an hour of total time, with minimal hands-on work. The result is a beautiful quiche that tastes even better than it looks.

Storage Options

One of the best things about this spinach mushroom quiche is how well it stores, making it perfect for meal prep or enjoying leftovers.

If you have leftovers, allow the quiche to cool completely before covering it tightly with plastic wrap or transferring it to an airtight container. Stored in the refrigerator, it will stay fresh for up to 4 days without losing its flavor or texture.

For longer storage, this quiche freezes beautifully. Once cooled, wrap individual slices or the entire quiche tightly in plastic wrap, followed by aluminum foil to prevent freezer burn. It can be frozen for up to 2 months.

When you're ready to enjoy your frozen quiche, thaw it overnight in the refrigerator. To reheat, place it in a 325°F oven until warmed through, typically about 15-20 minutes. This method preserves the texture far better than microwaving.

Variations and Substitutions

One of my favorite aspects of this quiche is how easily it adapts to different ingredients and dietary needs, making it a versatile addition to any meal plan.

For a different vegetable profile, try adding sautéed bell peppers, caramelized onions, or even roasted asparagus. These additions can complement or replace the spinach and mushrooms for a new twist.

If you're looking for a meatier option, crumbled cooked bacon, diced ham, or cooked sausage can be folded into the filling. Each adds a savory depth that pairs wonderfully with the creamy custard.

For a lower-dairy version, you can substitute the heavy cream with additional milk or a plant-based alternative like unsweetened almond or oat milk. Just be aware that the texture may be slightly less rich.

Cheese options are nearly endless. Swap the Gruyère for feta, goat cheese, or a blend of your favorites to suit your taste and what you have on hand.

Don’t be afraid to experiment with herbs and spices as well. A bit of fresh thyme, chives, or even a dash of smoked paprika can take the flavor to the next level.

Enjoy making this quiche your own—every variation offers a delicious new way to enjoy this comforting dish.

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