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Amazing Spinach Mushroom Quiche: 1 Easy Recipe

By Jordan Bell on March 5, 2026

A delicious slice of Spinach Mushroom Quiche on a plate, showcasing creamy filling, mushrooms, and spinach.

Oh, quiches! There’s just something so wonderfully comforting about a homemade quiche, isn’t there? Especially when you can whip one up without a fuss! My Spinach Mushroom Quiche is one of those go-to recipes for me, perfect for those lazy weekend mornings or even a quick, satisfying weeknight supper. It’s packed with savory sautéed mushrooms, tender spinach, gooey cheese, all nestled in a perfectly flaky crust. I honestly don’t remember the last time I bought a pre-made quiche because this easy version shines so brightly with its fresh flavors. It’s become a real crowd-pleaser in my house, and I just know you’re going to love it too!

Why You’ll Love This Spinach Mushroom Quiche

Seriously, this quiche is a winner for so many reasons! You’ll absolutely adore how:

  • It’s incredibly easy to throw together, even on a busy morning.
  • The combination of mushrooms, spinach, and cheese is just *chef’s kiss*.
  • It’s super versatile – perfect for breakfast, brunch, or even a light lunch.
  • It uses simple, satisfying ingredients that come together beautifully.

Ingredients for Your Perfect Spinach Mushroom Quiche

You’ll need just a few simple things from your pantry and fridge to whip up this deliciousness. Trust me, using good quality ingredients makes all the difference!

  • 1 premade 9-inch pie crust – makes life SO much easier!
  • 1 tablespoon olive oil – for getting those veggies perfectly sautéed.
  • 1 cup sliced mushrooms – cremini or white button work great.
  • 1 cup fresh spinach, roughly chopped – wilts down beautifully.
  • 1/2 cup diced yellow onion – adds a lovely sweetness.
  • 2 teaspoons minced garlic – because everything is better with garlic, right?
  • 4 large eggs – the heart of our creamy custard!
  • 1 cup whole milk – for that rich, smooth texture.
  • 1 cup shredded mozzarella cheese – hello, cheesy goodness!
  • 1/2 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1/2 teaspoon paprika – just a little something extra for flavor.
  • 1 tablespoon chopped fresh parsley – for a pop of freshness at the end.

How to Make a Delicious Spinach Mushroom Quiche

Alright, let’s get this quiche in the oven! It’s really pretty straightforward, and I promise you’ll feel like a kitchen pro once you’ve made it. The trick is just to follow along step-by-step, and you’ll have a fantastic Spinach Mushroom Quiche in no time. Check out these easy air fryer recipes if you’re looking for more quick meal ideas!

Prepping the Crust and Veggie Base

First things first, you gotta get that oven preheating to 375°F (190°C). While it’s warming up, grab your premade pie crust and gently press it into a 9-inch pie dish. You just want it to fit nicely, no need to fight it! Then, let’s get those veggies ready. Heat a tablespoon of olive oil in a skillet over medium heat. Toss in your diced onion and let it soften up for about 3 minutes – you’ll see it get a little translucent. Now, add in those beautiful sliced mushrooms and cook ‘em for 4-5 minutes until they start to look golden and have released their moisture. Finally, stir in the minced garlic and your chopped spinach. It only takes about a minute for the spinach to wilt down, so keep an eye on it! Once that’s done, take the skillet off the heat and let that yummy veggie mixture cool just a tiny bit.

Creating the Custard and Assembling the Quiche

While the veggies are cooling, let’s whip up the main star: the custard! In a good-sized bowl, whisk together your four large eggs, the whole milk, salt, pepper, and that little pinch of paprika. Just whisk it until it’s all nice and smooth – no streaks of egg yolk showing! Now, spread that slightly cooled mushroom and spinach mixture evenly across the bottom of your prepared pie crust. Next, sprinkle that shredded mozzarella cheese right over the top of the veggies. This is where the magic really starts to happen. Pour the egg mixture gently over everything, making sure it covers the cheese and veggies evenly. It should fill the crust right up to the edges.

Baking and Resting Your Spinach Mushroom Quiche

Time to bake! Carefully place your assembled quiche into that preheated oven. We’re looking at about 35 minutes. You’ll know it’s ready when the center looks set – no more jiggling – and the top is a lovely, light golden brown. A little visual cue is that the edges will start to pull away from the pie dish ever so slightly. A close-up of a slice of Spinach Mushroom Quiche on a plate, showing layers of spinach, mushrooms, and cheese. Now, this part is super important, and I learned this the hard way sometimes! Let the quiche rest for at least 10 minutes after you take it out of the oven. This lets the custard fully set, making it much easier to slice and keeping those beautiful layers from falling apart. It’s worth the wait, trust me!

Tips for the Best Spinach Mushroom Quiche

Honestly, making a truly fantastic Spinach Mushroom Quiche isn’t super complicated, but a few little tricks I’ve picked up along the way really make it shine. It’s all about paying attention to the details!

First off, don’t skimp on your veggies! Make sure you really get those mushrooms nicely browned – that’s where all the deep, savory flavor comes from. And don’t just toss in raw spinach; let it wilt down first. Also, give your veggies a chance to cool a bit before adding them to the crust; you don’t want them cooking the crust unevenly. Trust me on the resting part too; that 10 minutes after baking makes all the difference for a clean slice. If you’re looking for more fantastic breakfast ideas, check out these high-protein healthy breakfast recipes – they’re lifesavers!

A slice of delicious Spinach Mushroom Quiche on a plate, showcasing flaky crust, creamy filling, spinach, and mushrooms.

Ingredient Notes and Substitutions for Spinach Mushroom Quiche

Okay, so a few little tweaks can make this Spinach Mushroom Quiche even *more* your own! If you find yourself out of mozzarella, don’t sweat it. Gruyère or even a sharp cheddar can give it a wonderful depth of flavor. I’ve had great luck with both. And if fresh spinach isn’t your jam, you can totally swap it for frozen, just make sure you thaw it completely and squeeze out all the extra water – nobody wants a watery quiche! Sometimes I even throw in a bit of finely chopped swiss chard if I have it lying around. It all works!

Serving Suggestions and Pairings

This Spinach Mushroom Quiche is honestly pretty complete on its own, but it loves to be paired with other goodies to make a full meal! A light, fresh green salad is always a winner – check out these easy salad dressing recipes to go with it! A side of roasted potatoes or some fresh fruit also makes it extra special. For drinks, a sparkling water with lemon or a crisp white wine would be delightful.

A delicious slice of Spinach Mushroom Quiche with creamy filling, spinach, and sauteed mushrooms on a plate.

Storing and Reheating Your Spinach Mushroom Quiche

Leftovers of this amazing Spinach Mushroom Quiche are totally a thing, and they’re just as delicious the next day! Once it’s cooled down, just pop any extra slices into an airtight container and stash them in the fridge. They’ll keep well for about 3-4 days. When you’re ready for a second round, you can gently reheat individual slices in the microwave for about 30-45 seconds, or pop them in a low oven (around 300°F or 150°C) for about 10-15 minutes until they’re warmed through. This helps keep that crust nice and crisp!

Frequently Asked Questions about Spinach Mushroom Quiche

Got questions about making this Spinach Mushroom Quiche? I’ve got answers! Here are a few things folks often wonder about:

Can I make this quiche ahead of time?

Absolutely! You can prepare the quiche right up to the baking step, cover it tightly, and keep it in the fridge for up to 24 hours. Then, just pop it into the oven when you’re ready. You might need to add a few extra minutes to the baking time. It’s also great for leftovers; store cooled slices in an airtight container in the fridge for about 3-4 days!

What other vegetables can I add to this quiche?

Oh, you can get so creative! Bell peppers (red or green are lovely), broccoli florets, or even some chopped zucchini would be delicious additions. Just make sure to sauté them a bit first to get rid of excess moisture, just like we do with the mushrooms and onions. You can also check out this vegetarian breakfast casserole for more veggie ideas!

How do I prevent a soggy crust on my quiche?

A soggy crust is the worst! A couple of things help: make sure you really cook down your veggies to release their water, and let the sautéed mixture cool before adding it to the crust. Also, pre-baking the crust for about 5-7 minutes (this is called blind baking) before adding the filling can give it an extra boost of crispiness. And don’t forget to let the quiche rest after baking!

Can I use a different cheese in my quiche?

Definitely! While mozzarella gives it that wonderful melt and mild flavor, feel free to experiment. Gruyère adds a nutty depth, sharp cheddar brings a nice tang, or even a bit of Parmesan can amp up the savory notes. Just use about the same amount, and it’ll be delicious!

Nutritional Information for Spinach Mushroom Quiche

Here’s a little peek at the estimated nutritional breakdown per slice of this delightful Spinach Mushroom Quiche. Keep in mind, these numbers are approximate and can totally change depending on the exact brands and ingredients you use!

  • Calories: Around 290
  • Fat: About 19g
  • Protein: Roughly 13g
  • Carbohydrates: Approximately 18g
  • Sugar: Around 3g
  • Sodium: About 420mg
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A close-up of a slice of Spinach Mushroom Quiche on a plate, showing the creamy filling, spinach, mushrooms, and golden crust.

Spinach Mushroom Quiche


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  • Author: Jordan Bell
  • Total Time: 50 min
  • Yield: 6 servings 1x
  • Diet: Vegetarian

Description

An easy savory breakfast or brunch quiche with eggs, sautéed mushrooms, spinach, and cheese in a flaky crust.


Ingredients

Scale
  • 1 premade 9 inch pie crust
  • 1 tablespoon olive oil
  • 1 cup sliced mushrooms
  • 1 cup fresh spinach roughly chopped
  • 1 half cup diced yellow onion
  • 2 teaspoons minced garlic
  • 4 large eggs
  • 1 cup whole milk
  • 1 cup shredded mozzarella cheese
  • 1 half teaspoon salt
  • 1 half teaspoon black pepper
  • 1 half teaspoon paprika
  • 1 tablespoon chopped fresh parsley

Instructions

  1. Preheat oven to 375°F.
  2. Place the pie crust into a 9 inch pie dish and gently press it into the bottom and sides. Set aside.
  3. Heat olive oil in a skillet over medium heat.
  4. Add diced onion and cook for about 3 minutes until soft.
  5. Stir in the sliced mushrooms and cook for 4 to 5 minutes until they release moisture and begin to brown.
  6. Add garlic and chopped spinach. Cook for 1 minute until the spinach wilts. Remove from heat and allow the mixture to cool slightly.
  7. In a large bowl whisk together eggs, milk, salt, black pepper, and paprika until smooth.
  8. Spread the mushroom and spinach mixture evenly over the pie crust.
  9. Sprinkle shredded mozzarella cheese evenly on top of the vegetables.
  10. Pour the egg mixture over the filling.
  11. Bake for 35 minutes until the center is set and the top is lightly golden.
  12. Let the quiche rest for 10 minutes before slicing. Garnish with chopped parsley before serving.

Notes

  • Allowing the quiche to rest before slicing helps the egg filling fully set and keeps each slice clean and structured.
  • Prep Time: 15 min
  • Cook Time: 35 min
  • Category: Breakfast
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 slice
  • Calories: 290
  • Sugar: 3 g
  • Sodium: 420 mg
  • Fat: 19 g
  • Saturated Fat: 0 g
  • Unsaturated Fat: 0 g
  • Trans Fat: 0 g
  • Carbohydrates: 18 g
  • Fiber: 2 g
  • Protein: 13 g
  • Cholesterol: 0 mg

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