Mushroom Quiche Recipe: Few dishes strike the perfect balance between comforting and elegant quite like a mushroom quiche. Whether you’re hosting brunch, planning a light lunch, or simply craving something savory and satisfying, this dish hits all the right notes. With its flaky crust, creamy filling, and earthy mushrooms, mushroom quiche is a flavorful, protein-rich meal that’s both impressive and easy to make.
In this guide, we’ll walk you through everything you need to make the perfect mushroom quiche—from listing the essential ingredients to showing you step-by-step how to bring it all together. We’ll also share some pro tips, flavor-boosting add-ins, and dietary adaptations to suit your lifestyle. Ready to bake like a pro? Let’s get started!
Ingredients You’ll Need
Essential Ingredients
Creating the perfect mushroom quiche starts with choosing the right ingredients. Here’s what you’ll need to get started:
- 1 pre-made pie crust (or homemade, if you’re feeling ambitious)
- 1 tablespoon olive oil or butter
- 1 small onion, finely diced
- 2-3 garlic cloves, minced
- 8 oz (225g) fresh mushrooms, sliced (cremini, button, or your favorite variety)
- 4 large eggs
- 1 cup whole milk
- ½ cup heavy cream
- 1 cup shredded cheese (Gruyère, Swiss, cheddar, or a mix)
- Salt and pepper, to taste
These are the core components that make up the flavor and structure of your quiche. Always go for fresh ingredients when possible, especially the mushrooms and eggs. The cream adds richness, while the milk keeps the texture light and smooth.
Optional Add-ins for Flavor Boost
Want to take your mushroom quiche to the next level? Consider adding these:
- Fresh spinach or kale (lightly sautéed and squeezed dry)
- Fresh herbs like thyme, parsley, or chives
- Nutmeg – just a pinch can elevate the custard flavor
- Red bell peppers, diced
- Leeks or scallions for extra oniony depth
These additions allow you to customize your quiche to your taste or what you have on hand. Herbs in particular add a garden-fresh twist that pairs beautifully with earthy mushrooms.
Ingredient Substitutions for Dietary Needs
Don’t worry if you’re working with dietary restrictions—there’s plenty of room for substitutions.
- Dairy-Free: Use plant-based milk (unsweetened almond, oat, or soy) and dairy-free cheese alternatives. Coconut cream works well in place of heavy cream.
- Gluten-Free: Choose a gluten-free pie crust or make a crustless version.
- Vegan: Substitute eggs with a chickpea flour batter or tofu, and use non-dairy milk and cheese.
No matter your needs, you can still enjoy a delicious quiche with the right swaps.
Kitchen Equipment Checklist
Before diving into the cooking process, make sure you’ve got the right tools on hand. Having the right kitchen equipment will make the entire process smoother and more enjoyable. Here’s what you’ll need:
- 9-inch pie dish or tart pan
- Mixing bowls (at least two medium-sized)
- Whisk or fork for mixing the custard
- Cutting board and a sharp knife
- Measuring cups and spoons
- Skillet or frying pan for sautéing the mushrooms
- Wooden spoon or spatula
- Oven mitts for safety
- Cooling rack (optional, but helpful)
Investing in good kitchen tools not only makes cooking easier but also ensures a better final product. A ceramic or glass pie dish is best for even heat distribution, which helps bake the crust and filling perfectly.
Step-by-Step Guide to Making Mushroom Quiche
Step 1: Preheat Your Oven
Set your oven to 375°F (190°C). Preheating ensures your quiche bakes evenly from the moment it goes in. Allow the oven to fully heat before placing your crust inside.
Step 2: Prepare the Pie Crust
You can use store-bought crust for convenience or homemade dough for a richer flavor. Fit the crust into a pie dish and trim edges. Blind bake by pricking the bottom with a fork, lining with parchment, and adding pie weights. Bake for 10–12 minutes to prevent a soggy base.
Step 3: Clean and Slice the Mushrooms
Use cremini, button, or a mix of wild mushrooms. Avoid soaking them; instead, wipe gently with a damp cloth to prevent water absorption. Slice evenly so they cook uniformly.
Step 4: Sauté the Mushrooms and Onions
Heat butter or oil in a skillet and cook onions until softened. Add mushrooms and sauté on medium-high heat to release moisture. Let the liquid evaporate completely—this step ensures deep flavor and prevents a watery quiche.
Step 5: Prepare the Egg Custard Mixture
In a bowl, whisk together 4 eggs and 1½ cups of milk or cream. The ideal ratio is roughly 1 egg to ⅓–½ cup dairy. Add salt, pepper, nutmeg, and any herbs. Whisk until smooth.
Step 6: Assemble the Quiche
Spread the sautéed mushrooms and onions evenly over the partially baked crust. Add grated cheese (Gruyère or Swiss work well). Pour the custard over top, ensuring it fills all gaps.
Step 7: Bake the Quiche
Bake for 35–45 minutes, or until the center is set but slightly jiggly. A knife inserted near the center should come out mostly clean.
Step 8: Let It Cool Before Serving
Allow the quiche to rest 10–15 minutes before slicing. This helps it set fully. Serve warm or enjoy chilled later.
Serving Suggestions
A mushroom quiche is versatile and can stand on its own or be part of a bigger spread. Here are some tasty serving ideas:
Perfect Pairings
- Fresh green salad with vinaigrette
- Tomato basil soup
- Roasted vegetables (like asparagus or carrots)
- Fresh fruit platter for brunch settings
- Crispy hash browns or oven-roasted potatoes
Drinks That Go Well With Quiche
- White wine like Sauvignon Blanc or Chardonnay
- Sparkling wine or Prosecco for brunch
- Fresh orange juice or mimosa
- Herbal tea or black coffee
Quiche is elegant but approachable—perfect for everything from holiday gatherings to lazy Sunday brunches.
Storage and Reheating Tips
Mushroom quiche stores wonderfully, making it perfect for meal prep or enjoying leftovers the next day. With proper storage and reheating techniques, you can keep that freshly baked flavor intact.
Storing Your Quiche
- Refrigerator:
Let the quiche cool completely, then wrap it tightly with plastic wrap or aluminum foil, or transfer it to an airtight container. It will keep well in the fridge for up to 4 days. - Freezer:
To freeze, let the quiche cool entirely. Wrap the whole quiche or individual slices tightly in plastic wrap, then again in foil. Store in a freezer-safe bag or container. It can be frozen for up to 2 months.
Pro Tip: If freezing, label with the date to keep track of freshness.
Reheating Instructions
- From the fridge:
Preheat your oven to 350°F (175°C). Cover the quiche loosely with foil and heat for about 15–20 minutes until warmed through. For individual slices, 10–12 minutes is usually enough. - From the freezer:
Thaw overnight in the refrigerator before reheating, or reheat directly from frozen by adding 10 extra minutes in the oven.
Avoid reheating in the microwave if you can—it tends to make the crust soggy and the texture rubbery. The oven is your best friend here.
Common Mistakes to Avoid
Even though quiche is a relatively simple dish, there are a few traps that can sabotage your final result. Here’s what to watch out for:
1. Overbaking
This is a common misstep that leads to a rubbery texture and a tough crust. Quiche should have a creamy, soft center—not a dry, spongy one. Remember: it will continue to cook slightly even after it’s out of the oven, so pull it when it’s just set.
2. Not Blind Baking the Crust
Skipping the blind bake often results in a soggy bottom crust. It’s worth the extra 10 minutes to pre-bake your crust, especially if you want a crisp base that contrasts beautifully with the soft custard filling.
3. Overloading with Fillings
Too much filling (especially wet ingredients like mushrooms or spinach) can cause the quiche to be watery or overflow. Always sauté your vegetables first and pat them dry with a paper towel to remove excess moisture.
4. Incorrect Egg to Dairy Ratio
Too many eggs or too much dairy can throw off the texture. Stick to the golden ratio: 1 egg per ½ cup of dairy (milk or cream). This ensures a soft, silky custard every time.
5. Not Letting It Rest Before Slicing
It’s tempting to dig in right away, but cutting a quiche too soon leads to a messy plate and under-set filling. Let it rest at least 15–20 minutes before slicing for picture-perfect portions.
Nutritional Breakdown
Here’s a general idea of the nutritional value per slice of a standard mushroom quiche (based on 8 slices total). Note that actual values can vary depending on your ingredients and serving size.
| Nutrient | Amount (per slice) |
|---|---|
| Calories | 280–350 kcal |
| Protein | 10–14g |
| Carbohydrates | 15–20g |
| Fat | 18–25g |
| Fiber | 1–2g |
| Sodium | 350–500mg |
Health Benefits of Mushrooms
Mushrooms are more than just tasty—they’re nutrient powerhouses:
- Low in calories, high in antioxidants
- Rich in B vitamins (riboflavin, niacin, pantothenic acid)
- Support immune health with selenium
- Offer umami flavor without added fat or salt
Pair mushrooms with protein-rich eggs and calcium from cheese, and you’ve got a well-rounded, satisfying dish.
Variations of Mushroom Quiche
The beauty of quiche is its flexibility. Once you master the base, you can play around with a variety of ingredients to suit your tastes, dietary needs, or whatever’s in your fridge.
Spinach and Mushroom Quiche
This classic combo is a brunch favorite. Spinach adds a bright, earthy flavor and boosts the nutritional value with iron and fiber.
- How to Make It:
Sauté fresh spinach until wilted or use thawed frozen spinach (be sure to squeeze out all the water!). Mix it with your sautéed mushrooms before layering into the crust. Add a little garlic and nutmeg to enhance the flavor. - Cheese Pairing:
Feta, Swiss, or Gruyère pair beautifully with the spinach-mushroom blend.
Crustless Mushroom Quiche
Watching carbs or eating gluten-free? Go crustless. This version is just as flavorful, but skips the pie dough entirely.
- How to Make It:
Grease a pie dish well and pour your sautéed veggies and custard mixture directly into it. Bake as usual.
The texture is more like a frittata, but still rich and satisfying. - Bonus Tip:
Add a tablespoon of flour or cornstarch to the egg mix for a slightly firmer texture without the crust.
Mini Mushroom Quiches
Perfect for parties, snacks, or portion control, mini quiches are as cute as they are delicious.
- How to Make It:
Use muffin tins instead of a full-size pie dish. Line each cup with mini crusts or go crustless. Fill and bake for 15–20 minutes.
They freeze well and are great for grab-and-go breakfasts. - Flavor Twist:
Try adding caramelized onions, goat cheese, or sun-dried tomatoes for a gourmet spin.
FAQs about Mushroom Quiche Recipe
1. Can I make mushroom quiche ahead of time?
Absolutely. You can prep and bake the entire quiche up to 2 days ahead. Store it covered in the fridge, and reheat in the oven at 350°F for 15–20 minutes before serving. It’s also delicious cold or at room temp.
2. What’s the best cheese to use in quiche?
It depends on your taste! Gruyère is classic and melts beautifully. Swiss, cheddar, feta, goat cheese, and mozzarella also work well. A mix of cheeses adds depth.
3. Can I freeze mushroom quiche?
Yes! Bake it first, let it cool completely, then wrap tightly in plastic wrap and foil. Freeze for up to 2 months. Thaw overnight in the fridge and reheat at 350°F.
4. Why is my quiche watery or runny?
Common causes are undercooked eggs, too much liquid, or water-heavy veggies like mushrooms or spinach that weren’t sautéed properly. Always cook veggies thoroughly and let the quiche rest before slicing.
5. Can I make this dairy-free or vegan?
Yes! Use dairy-free milk and cheese (like almond milk and vegan cheddar). For a vegan version, swap the eggs with a tofu or chickpea flour mixture. The texture will differ slightly but still tastes great.
Conclusion
Making a homemade mushroom quiche might sound like a fancy brunch project, but it’s surprisingly simple—and always satisfying. With a golden, flaky crust, a creamy, savory custard, and the rich umami of sautéed mushrooms, this dish checks every box.
Whether you’re serving it at a holiday brunch, packing it for lunch, or enjoying it as a cozy dinner, mushroom quiche is a versatile meal that never disappoints. Plus, with endless add-in options and dietary adaptations, it’s easy to make it your own.
So next time you’re staring at a pack of mushrooms wondering what to cook—remember this recipe. With just a few steps and simple ingredients, you’ll have a quiche that looks impressive, tastes incredible, and keeps everyone coming back for seconds.
