There’s something magical about pulling a golden-brown mushroom quiche out of the oven – that flaky crust shattering under your fork to reveal a creamy, savory filling studded with earthy mushrooms. This recipe became my weekend brunch staple after my French host mom taught me her foolproof version years ago. She’d always say, “A good quiche should whisper ‘bonjour’ when you take the first bite.”
What I love most about this mushroom quiche is how simple ingredients transform into something elegant. The mushrooms caramelize into little flavor bombs, while the custard sets up silky smooth around them. It’s the kind of dish that looks fancy but comes together with barely any effort – perfect for lazy Sunday mornings or last-minute dinner parties. Trust me, once you’ve mastered this basic version, you’ll find yourself making it on repeat!
Ingredients for Mushroom Quiche
Here’s what you’ll need to make my go-to mushroom quiche – I promise it’s all simple stuff you probably already have:
- 1 pre-made pie crust (the refrigerated kind works perfectly)
- 1 cup sliced mushrooms (I like cremini, but buttons work too)
- 1/2 cup diced yellow onions (trust me, measure after dicing!)
- 1 cup packed shredded cheese (Gruyère is heavenly, but cheddar works in a pinch)
- 4 large eggs (room temperature blends better)
- 1 cup whole milk (2% works, but whole makes it extra creamy)
- 1/2 teaspoon kosher salt
- 1/4 teaspoon freshly ground black pepper
That’s it! The magic happens when these basic ingredients come together in the oven. I always keep extras of everything because someone always asks for seconds.
How to Make Mushroom Quiche
Making this mushroom quiche is as easy as pie – literally! Just follow these simple steps, and you’ll have a showstopper in no time.
Preparing the Crust
Start by unrolling your pre-made pie crust into a 9-inch pie dish. Gently press it into the edges, then crimp the edges if you’re feeling fancy. Use a fork to prick the bottom all over – this keeps it from puffing up. No need to blind bake unless you want an extra crispy crust!
Cooking the Mushroom Filling
Heat a skillet over medium heat and toss in your mushrooms and onions. Cook them until they’re soft and golden, about 5-7 minutes. If you’re feeling adventurous, add a clove of minced garlic or a pinch of thyme in the last minute of cooking. The smell alone will make your kitchen feel like a French bistro!
Assembling and Baking
Spread your mushroom mixture evenly over the crust, then sprinkle the cheese on top. In a bowl, whisk together the eggs, milk, salt, and pepper until smooth. Slowly pour this custard over the filling, making sure it’s evenly distributed. Bake at 375°F for 35-40 minutes, until the top is golden and the center just barely jiggles. Let it rest for 5 minutes before slicing – I know it’s tempting to dive right in, but this makes for cleaner slices!
Tips for the Best Mushroom Quiche
After making this quiche more times than I can count, here are my foolproof tips for perfection:
- Use fresh mushrooms – they release the perfect amount of moisture as they cook (those pre-sliced ones tend to dry out)
- Let it rest for at least 5 minutes after baking – this sets the custard for clean slices
- Room temperature ingredients blend better – take the eggs and milk out 30 minutes before
- Try different cheeses – Gruyère is classic, but sharp cheddar or fontina work beautifully too
- Blind bake the crust for 10 minutes if you want it extra crispy (just weigh it down with pie weights or dried beans)
These little tricks make all the difference between a good quiche and a “wow, can I get your recipe?” quiche!
Mushroom Quiche Variations
Once you’ve mastered the basic version, try these delicious twists! I love adding a handful of fresh spinach to the mushroom mixture – it adds color and extra nutrients. For meat lovers, crispy bacon bits mixed into the filling are heavenly. And don’t be afraid to play with cheeses – feta gives a nice tang, while smoked gouda adds depth. My friend swears by adding caramelized shallots instead of onions for a sweeter note. The possibilities are endless with this versatile recipe!
Serving Suggestions for Mushroom Quiche
Mushroom quiche is so versatile – it works for breakfast, brunch, or even dinner! I love serving it warm (not piping hot) alongside a crisp green salad with a tangy vinaigrette to cut through the richness. Roasted veggies, like asparagus or Brussels sprouts, make a hearty side, while fresh fruit adds a sweet touch for brunch. Don’t forget a basket of warm, crusty bread to soak up every last bit of that creamy filling. Trust me, it’s a crowd-pleaser no matter how you serve it!
Storing and Reheating Mushroom Quiche
Leftover mushroom quiche? Lucky you! It keeps beautifully in the fridge for 3-4 days – just cover it tightly with foil or plastic wrap. When reheating, skip the microwave (unless you love soggy crust) and use a 350°F oven for 10-15 minutes instead. Pro tip: Place a baking sheet underneath to catch any drips! For longer storage, you can freeze individual slices wrapped in parchment paper, then thaw and reheat as needed.
Mushroom Quiche Nutritional Information
Just so you know what you’re enjoying – here’s the nutritional breakdown per slice (estimates may vary based on specific ingredients). Each serving contains about 250 calories, 15g fat (7g saturated), 12g protein, and 18g carbs. Not bad for something this delicious!
Frequently Asked Questions
Can I freeze mushroom quiche?
Absolutely! Mushroom quiche freezes beautifully. Just cool completely, wrap individual slices tightly in plastic wrap, then foil. They’ll keep for up to 2 months. To reheat, pop them straight from the freezer into a 350°F oven for 20-25 minutes – no thawing needed!
What cheese works best in mushroom quiche?
Gruyère is my top pick for its nutty flavor that pairs perfectly with mushrooms, but don’t stress if you don’t have it. Sharp cheddar, Swiss, or even mozzarella work great. My secret? Mix two cheeses – like Gruyère with a little Parmesan for extra depth!
Can I make this quiche ahead?
You bet! Assemble the whole quiche (unbaked) the night before, cover tightly, and refrigerate. Just add 5-10 extra minutes to the baking time since it’s going in cold. The crust might not get quite as flaky, but the flavor will still be amazing.
Why did my quiche turn out watery?
Ah, the soggy quiche curse! Usually it’s from mushrooms releasing too much liquid. Next time, cook your mushrooms until they’re nice and golden (no liquid left in the pan), and pat them dry before adding to the crust. Also, make sure your eggs and milk are room temperature – cold ingredients don’t set as well.
Can I use fresh herbs?
Please do! A tablespoon of fresh thyme or chives takes this quiche to the next level. Add delicate herbs like parsley or chives after baking, but sturdy ones like thyme or rosemary can go right in with the mushrooms as they cook.
Irresistible Mushroom Quiche Recipe in Just 4 Steps
A savory mushroom quiche with a flaky crust and creamy filling.
- Prep Time: 15 mins
- Cook Time: 40 mins
- Total Time: 55 mins
- Yield: 6 servings 1x
- Category: Breakfast
- Method: Baking
- Cuisine: French
- Diet: Vegetarian
Ingredients
- 1 pre-made pie crust
- 1 cup sliced mushrooms
- 1/2 cup diced onions
- 1 cup shredded cheese
- 4 eggs
- 1 cup milk
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
Instructions
- Preheat oven to 375°F (190°C).
- Place pie crust in a pie dish and prick with a fork.
- Sauté mushrooms and onions until soft, then spread over the crust.
- Sprinkle cheese over the mushrooms.
- Whisk eggs, milk, salt, and pepper, then pour over the filling.
- Bake for 35-40 minutes until set and golden.
- Let cool for 5 minutes before slicing.
Notes
- Use any cheese you prefer.
- Add herbs like thyme for extra flavor.
- Let the quiche rest before cutting for cleaner slices.
Nutrition
- Serving Size: 1 slice
- Calories: 250
- Sugar: 3g
- Sodium: 400mg
- Fat: 15g
- Saturated Fat: 7g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 18g
- Fiber: 1g
- Protein: 12g
- Cholesterol: 150mg
