Spinach Mushroom Quiche Recipe

There's nothing quite like the comforting aroma of a freshly baked spinach mushroom quiche filling your kitchen. The buttery crust, creamy custard, and savory blend of spinach and mushrooms make this dish perfect for any meal of the day.

this Recipe

I first discovered this recipe when looking for an easy brunch option that could double as a light dinner. Over time, it's become a family favorite for its simplicity, elegance, and incredible flavor. Let’s dive right in!

Why You'll Love This Spinach Mushroom Quiche

Get ready to fall in love with a recipe that delivers both flavor and convenience. This spinach mushroom quiche is more than just delicious — it's a lifesaver for busy schedules and special occasions alike.

First, it's incredibly easy to make. With just a handful of simple steps, you can have this quiche prepped and in the oven in under 20 minutes. Whether you're hosting brunch or prepping weekday lunches, it fits seamlessly into your routine.

This recipe is also budget-friendly. Most of the ingredients are pantry staples or easily found at any grocery store, allowing you to create a sophisticated dish without spending a fortune.

One of my favorite things about this quiche is its versatility. You can serve it warm, at room temperature, or even cold, making it perfect for meal prep or entertaining. Plus, it pairs beautifully with a simple salad or a warm bowl of soup.

And let’s not forget how well it caters to a variety of dietary preferences. With a few minor tweaks, you can easily make this vegetarian, gluten-free, or even keto-friendly.

Now that you're sold, let's take a closer look at the ingredients that make this quiche so special.

Ingredients Notes

The magic of this spinach mushroom quiche lies in its thoughtfully chosen ingredients. Each component contributes to the overall harmony of flavors and textures that make this dish so satisfying.

The pie crust provides the foundation of the quiche. I typically use a store-bought refrigerated crust for convenience, but a homemade crust adds a delightful flakiness and buttery richness if you have the time. Pre-baking the crust ensures it stays crisp and doesn’t become soggy once the filling is added.

The spinach adds vibrant color and a mild earthy flavor. Fresh baby spinach is ideal because it wilts quickly and blends seamlessly into the custard. If you opt for frozen spinach, be sure to thaw and squeeze out as much moisture as possible to prevent a watery filling.

Mushrooms bring a savory, umami depth to the quiche. I prefer using cremini mushrooms for their robust flavor, but white button mushrooms work just as well. Sautéing them before adding to the filling concentrates their flavor and removes excess moisture.

The cheese is where you can have a bit of fun. I usually reach for shredded Swiss or Gruyère, both of which melt beautifully and add a nutty richness. A bit of Parmesan sprinkled on top creates a golden, flavorful crust.

For the custard, a simple mixture of eggs and half-and-half creates the creamy texture that binds everything together. Full-fat dairy ensures a rich and velvety filling, but you can substitute milk or a non-dairy alternative if desired.

You’ll also need a standard 9-inch pie dish and a skillet for sautéing your vegetables. A whisk and mixing bowl will help combine the custard mixture smoothly.

How To Make This Spinach Mushroom Quiche

Creating this spinach mushroom quiche is a straightforward process that even beginner cooks can master. Let me walk you through each step.

Start by preheating your oven to 375°F (190°C). While the oven heats, prepare your pie crust. If using a refrigerated crust, carefully unroll it into your pie dish, pressing it gently against the sides and trimming any excess. Use a fork to prick the bottom to prevent bubbling during baking. Blind bake the crust for about 10 minutes to ensure it stays crisp.

While the crust bakes, heat a large skillet over medium heat. Add a tablespoon of butter and let it melt until foamy. Toss in the sliced mushrooms and sauté them for about 5-7 minutes, stirring occasionally, until they release their moisture and develop a golden color. Season with a pinch of salt and pepper for added flavor.

Add the fresh spinach to the pan with the mushrooms. Stir gently until the spinach wilts, which should take just 2-3 minutes. If using frozen spinach, make sure it’s fully thawed and well-drained before adding. Once combined, remove the pan from heat and set aside to cool slightly.

In a large mixing bowl, whisk together the eggs and half-and-half until smooth and well blended. Stir in the shredded cheese, reserving a small handful for topping. Gently fold in the mushroom and spinach mixture, ensuring everything is evenly distributed.

Pour the filling into your pre-baked crust, spreading it out with a spatula to create an even layer. Sprinkle the reserved cheese and a bit of grated Parmesan over the top for a golden, bubbly finish.

Place the quiche on the center rack of your oven and bake for 35-40 minutes, or until the center is set and the top is lightly browned. You can check doneness by inserting a knife near the center — it should come out clean.

Allow the quiche to cool for at least 10-15 minutes before slicing. This resting time helps the custard set fully, making for cleaner, more attractive slices.

Storage Options

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

If you have leftovers, allow the quiche to cool completely before storing. Wrap individual slices tightly in plastic wrap or place them in airtight containers. Stored in the refrigerator, the quiche will stay fresh for up to 4 days.

For longer storage, you can freeze the quiche. Wrap it tightly in plastic wrap and then in aluminum foil to protect against freezer burn. When properly stored, it will maintain its quality for up to 2 months.

When ready to enjoy, thaw frozen quiche overnight in the refrigerator. Reheat slices in a 325°F oven for about 15-20 minutes, or until heated through. You can also use the microwave for a quicker option, though the crust may lose some of its crispness.

Variations and Substitutions

The versatility of this spinach mushroom quiche means you can easily adapt it to suit your taste or dietary needs.

If you're looking to add more protein, cooked bacon or diced ham make excellent additions. Simply stir them into the filling along with the spinach and mushrooms for a heartier version.

For a dairy-free option, substitute your favorite non-dairy milk and cheese alternatives. Just be sure to choose varieties that melt well and complement the other flavors.

You can swap the Swiss or Gruyère for cheddar, feta, or even goat cheese for a different flavor profile. Each option brings its own unique twist to the quiche.

Experiment with other vegetables, too. Bell peppers, caramelized onions, or sun-dried tomatoes add bursts of flavor and color. Just remember to sauté any watery vegetables first to prevent a soggy filling.

Don't be afraid to play around and make this quiche your own. The basic method remains the same, offering endless possibilities for customization.

Print