Spinach Mushroom Quiche Recipe

There's something undeniably cozy about pulling a golden, fragrant quiche from the oven. This Spinach Mushroom Quiche features a buttery, flaky crust, tender mushrooms, and fresh spinach nestled in a rich, creamy egg custard — it’s the kind of dish that feels fancy but couldn’t be easier to make

this Recipe

I first made this quiche on a rainy Sunday morning, digging through my fridge for something hearty yet wholesome. The earthy mushrooms and vibrant spinach turned out to be the perfect match, and this quiche has been a weekend brunch staple ever since.

Whether you're prepping for a lazy brunch, a light lunch, or a make-ahead dinner, this quiche fits the bill. Let’s take a closer look at why it deserves a spot in your recipe rotation.

Why You'll Love This Spinach Mushroom Quiche

This Spinach Mushroom Quiche isn't just tasty — it's a lifesaver for busy households and home cooks who love reliable, flavorful meals.

First and foremost, it’s incredibly easy to prepare. You don’t need to be a pastry chef to whip this up. With a store-bought pie crust and a simple egg filling, you can have it in the oven in just 15 minutes.

It’s also perfect for meal prep. Bake it on Sunday, and you’ll have slices ready to reheat for breakfast, lunch, or even dinner throughout the week. It reheats beautifully without losing texture or flavor.

This recipe is surprisingly budget-friendly. Mushrooms, spinach, and eggs are all affordable staples, and you can stretch this quiche to feed four to six people easily.

And perhaps best of all, it’s versatile. You can switch out the cheese, add different herbs, or toss in other veggies you have on hand. It's a great clean-out-the-fridge recipe that still feels gourmet.

Once you make it the first time, you'll see why this quiche has earned a permanent spot in our family meal plan.

Ingredients Notes

This quiche shines thanks to a handful of well-chosen ingredients that balance flavor, texture, and richness perfectly.

Fresh spinach is the green backbone of this dish. While you can use frozen spinach in a pinch, I recommend sautéing fresh spinach for the best flavor and texture. Just a few handfuls wilt down beautifully and add a fresh, slightly sweet note to the filling.

Mushrooms add a savory, umami depth that makes this quiche feel hearty and satisfying. Cremini or baby bella mushrooms are ideal because of their meatier flavor, but white button mushrooms also work well if that’s what you have on hand.

Eggs and cream create the luscious custard that holds everything together. I use large eggs and a mix of heavy cream and whole milk to strike a balance between richness and lightness. If you're looking for a lighter option, you can substitute half-and-half.

Cheese brings everything together. I prefer grated Gruyère for its nutty depth, but sharp white cheddar or Swiss are also delicious alternatives. The cheese melts into the custard and gives each bite a satisfying creaminess.

You’ll also need a pie crust, either homemade or store-bought. If you're using frozen crust, be sure to blind bake it first to avoid sogginess. A standard 9-inch crust works perfectly for this recipe.

How To Make This Spinach Mushroom Quiche

Making this quiche is surprisingly straightforward, and once you’ve done it once, it’ll become second nature.

Start by preheating your oven to 375°F. If you're using a frozen pie crust, let it thaw slightly, then prick the bottom with a fork and blind bake it for about 10 minutes. This step helps keep the crust crisp once the filling is added.

While the crust bakes, heat a drizzle of olive oil in a skillet over medium heat. Add your sliced mushrooms and cook until they release their moisture and begin to brown — about 6-8 minutes. Stir in the fresh spinach and cook just until wilted. Season with a pinch of salt and pepper, then remove from heat and let the mixture cool slightly.

In a medium bowl, whisk together your eggs, cream, and milk until fully combined. Stir in a pinch of salt, pepper, and a bit of nutmeg for added warmth. Fold in your shredded cheese, reserving a small handful for topping.

Once the crust is ready, layer in your mushroom and spinach mixture, spreading it out evenly. Pour the egg mixture over the vegetables, then sprinkle the remaining cheese on top. Place the quiche on a baking sheet to catch any spills.

Bake for 35-40 minutes, or until the center is just set and the top is lightly golden. A knife inserted near the center should come out clean. Let it cool for at least 10 minutes before slicing — this helps the custard finish setting and makes for cleaner cuts.

From start to finish, you’ll need just under an hour. The result? A quiche that’s warm, satisfying, and absolutely packed with flavor.

Storage Options

This quiche stores wonderfully, making it a fantastic option for meal prep or easy leftovers.

To store in the refrigerator, let the quiche cool completely, then cover tightly with foil or transfer slices to an airtight container. It will stay fresh for up to 4 days.

For longer storage, you can freeze the quiche. Wrap the fully cooled quiche (or individual slices) tightly in plastic wrap and then foil. Label with the date, and freeze for up to 2 months.

To reheat, thaw frozen slices in the fridge overnight, then warm in a 350°F oven for 10-15 minutes or until heated through. You can also microwave slices in 30-second bursts, though the crust may not stay as crisp.

Variations and Substitutions

One of the best things about this quiche is how easy it is to adapt to your taste or pantry.

Try swapping the mushrooms for roasted red peppers or caramelized onions for a different flavor profile. These ingredients also pair well with spinach and bring their own unique sweetness.

For a heartier version, add some cooked bacon or crumbled sausage. Just make sure to drain excess grease before mixing it into the filling.

You can switch out the cheese to keep things interesting. Feta, goat cheese, or even a spicy pepper jack can each bring a new twist to the classic base.

If you're avoiding dairy, opt for a non-dairy milk and cheese alternative. Many plant-based cheeses melt well now, and oat milk works nicely in the custard mixture.

Feel free to get creative with herbs and spices. A touch of thyme or a sprinkle of chives on top before baking can take this quiche to the next level.

Once you get the basic formula down, this quiche becomes a canvas for your culinary creativity. Don’t be afraid to mix and match based on what you love or what’s in your fridge!

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