Spinach Mushroom Quiche Recipe

There's something undeniably comforting about pulling a golden-brown Spinach Mushroom Quiche from the oven. The flaky crust, the earthy aroma of sautéed mushrooms, and the richness of melted cheese all come together in a warm, savory slice that's perfect for any time of day.

I first made this quiche on a chilly Sunday morning when I had leftover mushrooms and spinach that needed using. Since then, it has become a weekend staple in our home, especially when hosting brunch or needing a make-ahead breakfast option.

Whether you're feeding guests or prepping meals for the week, this quiche delivers a satisfying, veggie-packed punch in every bite. Let's dive into why it's a must-make!

Why You'll Love This Spinach Mushroom Quiche

Get ready to fall in love with this easy, elegant dish that fits seamlessly into any meal plan. This Spinach Mushroom Quiche is more than just delicious—it's a multitasking marvel for busy households.

First, it's incredibly easy to prepare. Even if you're not a seasoned baker, this quiche comes together with minimal fuss. Using store-bought crust streamlines the process, making it totally beginner-friendly.

It's also a fantastic make-ahead option. Bake it the night before, and you've got breakfast or lunch ready to go for the next few days. It reheats beautifully and even tastes great at room temperature.

Budget-conscious cooks will appreciate that this recipe uses everyday ingredients. A handful of pantry staples, some fresh veggies, and eggs are all you need for a meal that feels fancy without the high cost.

And don’t forget how versatile it is. You can serve it warm for brunch, chilled for a picnic, or with a side salad for a light dinner. It’s the kind of recipe that adapts to your lifestyle.

Let’s take a closer look at what makes up this flavor-packed dish.

Ingredients Notes

The magic of this Spinach Mushroom Quiche lies in its well-balanced blend of fresh and creamy components. Each ingredient brings something special to the table.

Mushrooms are the star of the show here. Their earthy, umami-rich flavor deepens as they cook down, adding a hearty bite that contrasts beautifully with the soft custard filling. Cremini or baby bella mushrooms work especially well, but white button mushrooms will do in a pinch.

Fresh spinach adds color, nutrition, and a slight vegetal sweetness. Make sure to sauté it before adding to the quiche to remove excess moisture. Frozen spinach can also be used if it's thoroughly thawed and drained.

Eggs and half-and-half form the creamy base of the quiche. The eggs provide structure while the dairy creates that rich, custard-like texture. You can substitute with whole milk if needed, but half-and-half gives the best results.

Shredded cheese melts into the filling, binding everything together and adding flavor. I love using a sharp white cheddar for a tangy contrast, but Swiss or gruyere are excellent alternatives too.

You'll also need a prepared pie crust. A store-bought crust keeps things easy, but if you have a favorite homemade recipe, by all means use it. A deep-dish crust is ideal for holding all that delicious filling.

No special equipment is necessary, just a standard 9-inch pie dish and a skillet for sautéing.

How To Make This Spinach Mushroom Quiche

Making this quiche is a simple, satisfying process that will fill your kitchen with mouthwatering aromas.

Start by preheating your oven to 375°F and placing your pie crust into a 9-inch dish. Crimp the edges if desired, then set it aside while you prepare the filling.

Heat a splash of olive oil in a large skillet over medium heat. Add your sliced mushrooms and cook them down until they're golden and their moisture has evaporated, about 7-10 minutes. Stir in your fresh spinach and cook just until wilted. Season with salt, pepper, and a pinch of nutmeg for a subtle depth of flavor.

In a mixing bowl, whisk together your eggs and half-and-half until fully combined. Stir in the shredded cheese, then fold in the mushroom and spinach mixture once it has cooled slightly.

Pour the filling into the prepared crust, spreading it evenly. Bake for 35-40 minutes, or until the center is just set and the top is lightly golden. If the edges of your crust brown too quickly, cover them with foil during the last 10 minutes.

Let the quiche rest for at least 10 minutes before slicing. This helps the custard set and makes for cleaner slices.

The entire process takes about an hour from start to finish, making it perfect for weekend meal prep or a leisurely brunch.

Storage Options

This quiche stores like a dream, making it a great candidate for meal planning or leftovers.

Once fully cooled, you can refrigerate individual slices or the whole quiche in an airtight container. It will keep well in the fridge for up to 4 days without losing texture or flavor.

To freeze, wrap slices tightly in plastic wrap and then foil, or place them in a freezer-safe container. They can be frozen for up to 2 months. Thaw overnight in the refrigerator before reheating.

Reheat slices in the microwave for about 1-2 minutes, or in the oven at 350°F for 10-15 minutes until warmed through. For the best texture, the oven is your best bet.

Variations and Substitutions

One of the best things about this quiche is how customizable it is. You can tweak the ingredients to suit your taste or what you have on hand.

Swap the spinach for kale, Swiss chard, or even arugula if you're looking for a peppery kick. Just remember to sauté and drain your greens to avoid excess moisture.

If you're not a fan of mushrooms, try using caramelized onions, roasted red peppers, or steamed broccoli for a different flavor profile.

For a protein boost, add cooked bacon, diced ham, or crumbled sausage. These additions make the quiche even more filling and give it a heartier texture.

Dairy-free? Use a plant-based milk and your favorite non-dairy cheese. The texture may be slightly different, but you’ll still get a delicious result.

Experimenting with herbs like thyme, dill, or chives can also add a fresh twist. Feel free to mix and match based on the season or your mood!

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