Looking for a delicious, savory dish that’s perfect for brunch, lunch, or a light dinner? This Spinach, Mushroom & Feta Quiche combines golden sautéed mushrooms, tender spinach, creamy eggs, and tangy feta cheese in a flaky pastry crust.
Baked until lightly golden and beautifully set, this homemade quiche offers a wonderful balance of earthy mushrooms, fresh vegetables, and rich cheese. A touch of garlic and nutmeg adds extra flavor, while Gruyère or Swiss cheese creates a smooth, cheesy finish.
Whether you’re preparing a weekend brunch, a family lunch, or a make-ahead meal for busy weekdays, this easy mushroom and spinach quiche is a satisfying recipe that looks as good as it tastes.
Recipe Overview
| Detail | Information |
| Prep Time | 15 minutes |
| Cook Time | 45 minutes |
| Cooling Time | 10–15 minutes |
| Total Time | Approximately 1 hour |
| Servings | 6–8 |
| Cuisine | French-inspired |
| Course | Breakfast, brunch, lunch, or dinner |
| Cooking Method | Sautéing and baking |
| Oven Temperature | 375°F (190°C) |
| Difficulty | Easy to moderate |
Why You’ll Love This Recipe
Rich and savory flavor: Sautéed mushrooms, garlic, spinach, and cheese create a delicious combination in every slice.
Creamy egg filling: Eggs and cream bake into a tender, custard-like filling that complements the flaky pastry crust.
Perfect for any occasion: This quiche works beautifully for weekend brunch, casual lunches, family gatherings, or a light evening meal.
Easy to customize: You can use feta, goat cheese, Gruyère, Swiss cheese, or a combination of your favorites.
Great for meal prep: The quiche can be prepared ahead of time, refrigerated, and reheated when needed.
Delicious warm or at room temperature: Serve it fresh from the oven or enjoy a slice later with a crisp green salad.
Ingredients
For the Crust
| Ingredient | Quantity |
| Homemade or store-bought pie crust | 1 crust |
| Pie dish | 9-inch (23 cm), approximately |
Use a pre-baked or blind-baked crust. If your crust is not already baked, follow the package directions or partially bake it for approximately 10 minutes, using baking weights if needed.
For the Mushroom and Spinach Filling
| Ingredient | Quantity |
| Olive oil or unsalted butter | 1 tablespoon |
| Cremini or button mushrooms, sliced | 8 oz (225 g) |
| Garlic cloves, minced | 2 |
| Fresh spinach, coarsely chopped | 2 cups |
| Salt | To taste |
| Freshly ground black pepper | To taste |
For the Egg Custard
| Ingredient | Quantity |
| Large eggs | 4 |
| Heavy cream or whole milk | 1 cup (240 ml) |
| Crumbled feta cheese or goat cheese | 1/2 cup |
| Shredded Gruyère or Swiss cheese | 1/2 cup |
| Ground nutmeg | 1/4 teaspoon |
| Salt and black pepper | To taste |
| Fresh parsley, chopped | 2 tablespoons, for garnish |
Ingredient note: Feta provides a tangy, salty flavor, while goat cheese offers a creamier texture. Gruyère and Swiss cheese add a mild, nutty taste that works beautifully with mushrooms.
Step-by-Step Instructions
Step 1: Preheat the Oven
Preheat your oven to 375°F (190°C).
Place the pre-baked pie crust in a 9-inch (23 cm) pie dish if it is not already positioned in one.
Check that the crust is evenly baked and has no large cracks. Blind-baking helps prevent a soggy bottom once the wet filling is added.
Step 2: Sauté the Mushrooms
Heat the olive oil or butter in a large skillet over medium-high heat.
Add the sliced mushrooms in a single layer if possible. Cook for approximately 5–7 minutes, stirring occasionally, until the mushrooms release their moisture and become golden brown.
Season with a little salt and freshly ground black pepper.
Reserve a few attractive mushroom slices for decorating the top of the quiche, then continue with the remaining mushrooms.
Step 3: Add the Garlic and Spinach
Stir the minced garlic into the mushrooms and cook for approximately 30 seconds until fragrant.
Add the chopped spinach and cook for another 1–2 minutes, stirring until the leaves wilt.
Remove the skillet from the heat.
If the vegetables have released excess liquid, drain it thoroughly. Allow the mixture to cool slightly before assembling the quiche.
This step is important because excess moisture can prevent the egg filling from setting properly and may leave the pastry soggy.
Step 4: Prepare the Egg Custard
In a medium mixing bowl, crack the four eggs and whisk them until the yolks and whites are combined.
Add the heavy cream or whole milk, ground nutmeg, a little salt, and black pepper.
Whisk until the mixture is smooth and evenly blended.
Remember that feta can be quite salty, so start with a small amount of salt and adjust according to your taste.
Step 5: Assemble the Quiche
Spread the sautéed mushroom, garlic, and spinach mixture evenly over the bottom of the pie crust.
Sprinkle the shredded Gruyère or Swiss cheese over the vegetables, followed by the crumbled feta or goat cheese.
Pour the egg custard slowly over the filling, distributing it evenly throughout the crust.
Arrange the reserved mushroom slices on top for an attractive finish.
Avoid overfilling the crust. If you have extra custard, save it rather than allowing it to spill over the edges.
Step 6: Bake Until Set
Place the quiche on the middle rack of the preheated oven.
Bake for approximately 35–40 minutes, or until the edges are set, the top is lightly golden, and the center no longer looks liquid.
If the crust begins browning too quickly, loosely cover the edges with aluminum foil.
For food safety, the egg-based filling should reach 160°F (71°C) in the center, measured with a food thermometer.
If the center is still loose, continue baking in 5-minute increments until fully set.
Step 7: Rest Before Slicing
Remove the quiche from the oven and place it on a heat-safe surface.
Let it cool for 10–15 minutes before slicing. This resting time allows the custard to settle and makes it easier to cut neat slices.
Sprinkle the chopped fresh parsley over the top just before serving.
Step 8: Serve and Enjoy
Cut the quiche into six to eight slices, depending on the portion size.
Serve warm or at room temperature with a fresh green salad, roasted vegetables, or a bowl of soup.
Enjoy the combination of flaky pastry, tender spinach, golden mushrooms, creamy eggs, and flavorful cheese.
Best Tips for a Perfect Quiche
Cook the mushrooms thoroughly. Mushrooms contain a lot of moisture. Sautéing them until golden helps concentrate their flavor and prevents excess liquid from entering the custard.
Drain the spinach well. Even fresh spinach can release water during cooking. Removing excess liquid helps the filling set properly.
Blind-bake the crust. A partially baked crust provides a sturdier base and reduces the risk of a soggy bottom.
Use room-temperature eggs and cream when convenient. They combine easily and can help the filling bake more evenly.
Season carefully. Feta and some Gruyère or Swiss cheeses contain salt, so taste the vegetable mixture and adjust the seasoning accordingly.
Avoid overbaking. The custard should be set but tender. Excessive baking can make the eggs rubbery.
Let the quiche rest. Cutting too early can cause the filling to fall apart. A short cooling period helps each slice hold its shape.
Best Ingredient Options
Cremini mushrooms: These have a deeper, earthier flavor than white button mushrooms and are excellent for savory quiche.
Button mushrooms: An affordable, widely available alternative with a mild flavor.
Fresh spinach: Provides color, texture, and a fresh vegetable flavor. Frozen spinach can also be used if thawed and squeezed thoroughly.
Feta cheese: Adds a salty, tangy flavor that balances the creamy custard.
Goat cheese: Creates a softer, creamier filling with a distinctive tang.
Gruyère cheese: A wonderful choice for its nutty flavor and melting qualities.
Heavy cream: Produces a richer, more luxurious custard.
Whole milk: Creates a lighter filling while still providing a creamy texture.
Recipe Variations
Caramelized Onion Quiche: Add thinly sliced onions cooked slowly until golden for a sweeter, deeper flavor.
Three-Cheese Quiche: Combine feta, Gruyère, and mozzarella for a varied cheese texture and flavor.
Spinach and Mushroom Mini Quiches: Divide the filling among muffin tins lined with small pastry rounds and reduce the baking time, checking frequently for doneness.
Roasted Red Pepper Quiche: Add chopped, well-drained roasted red peppers for extra color and a slightly sweet flavor.
Herb Mushroom Quiche: Add fresh thyme, chives, or parsley to enhance the earthy mushroom flavor.
Crustless Spinach and Mushroom Quiche: Grease a baking dish and pour in the filling without pastry. Bake until the egg mixture is fully set, adjusting the cooking time for the depth of the dish.
Dairy-Light Variation: Use whole milk instead of heavy cream and reduce the cheese slightly. The filling will be less rich but still flavorful.
What to Serve With Spinach, Mushroom & Feta Quiche
Fresh green salad: Mixed greens with a lemon vinaigrette provide a refreshing contrast to the rich egg custard.
Roasted potatoes: Crispy potatoes make the quiche a more substantial brunch or dinner.
Tomato salad: Fresh tomatoes, herbs, and a light dressing complement the savory mushrooms and cheese.
Roasted vegetables: Carrots, zucchini, broccoli, or bell peppers make colorful side dishes.
Vegetable soup: A warm bowl of soup turns a slice of quiche into a comforting lunch.
Fresh fruit: Sliced apples, grapes, berries, or melon are lovely additions to a brunch table.
Whole-grain bread: Serve with crusty bread or whole-grain toast for a satisfying meal.
Make-Ahead Instructions
You can prepare the mushroom and spinach filling a day ahead. Cook the vegetables, drain any excess moisture, and refrigerate them in an airtight container.
You can also blind-bake the crust in advance and store it according to the crust recipe or package instructions.
For the best texture, assemble and bake the quiche on the day you plan to serve it. Alternatively, bake the complete quiche ahead of time, refrigerate it promptly, and reheat it before serving.
Storage Instructions
Allow the quiche to cool slightly after baking, then refrigerate it within 2 hours.
Store leftovers in an airtight container or cover the pie dish tightly with plastic wrap or foil.
Refrigerate for up to 3–4 days.
Because the filling contains eggs and dairy, do not leave the quiche at room temperature for extended periods.
Reheating Instructions
Oven method: Preheat the oven to 325°F (165°C). Place the quiche slices on a baking tray and heat for approximately 10–15 minutes, or until warmed through.
Air fryer method: Place a slice in the air fryer at approximately 300°F (150°C) for 4–7 minutes, checking regularly to prevent the crust from becoming too dark.
Microwave method: Place a slice on a microwave-safe plate and heat in short intervals until warm. The crust may become softer than when reheated in the oven.
For food safety, reheat leftovers to 165°F (74°C).
Freezing Instructions
This quiche can be frozen whole or in individual slices.
Allow it to cool completely, wrap it tightly, and place it in a freezer-safe container or bag. For best quality, use it within approximately 2–3 months.
Thaw overnight in the refrigerator before reheating.
The texture of the custard may change slightly after freezing, and the crust may become less crisp. Reheating in the oven can help restore some of its texture.
Common Mistakes to Avoid
Adding wet vegetables: Excess moisture from mushrooms and spinach can make the filling watery. Cook and drain the vegetables thoroughly.
Skipping blind-baking: An unbaked crust may remain soft or soggy beneath the filling. Partially baking it first helps create a firmer base.
Overfilling the crust: Too much egg custard can spill over the edges. Leave a little room at the top.
Using too much salt: Feta and other cheeses can be salty. Season gradually and taste before adding extra salt.
Baking at the wrong temperature: An oven that is too hot may brown the crust before the custard sets. Maintain the recommended temperature and check the center.
Slicing immediately: Hot custard is delicate. Allow the quiche to rest before cutting.
Overbaking the eggs: Baking for too long can make the filling firm, dry, or rubbery. Remove the quiche once the center is set and reaches a safe temperature.
Nutrition Estimate
The following nutrition values are approximate per serving, assuming the quiche is divided into eight portions and prepared with a standard pastry crust, heavy cream, feta, and Gruyère.
| Nutrient | Approximate Amount |
| Calories | 300–380 kcal |
| Protein | 11–15 g |
| Total Fat | 22–29 g |
| Saturated Fat | 10–14 g |
| Carbohydrates | 15–22 g |
| Fiber | 1–3 g |
| Sodium | 400–650 mg |
Actual values depend on the pastry, cheese brands, cream, portion size, and amount of salt used.
Frequently Asked Questions
Can I use frozen spinach instead of fresh spinach?
Yes. Thaw the frozen spinach completely and squeeze out as much moisture as possible before adding it to the mushrooms. Excess water can make the quiche filling too soft.
Can I use goat cheese instead of feta?
Absolutely. Goat cheese provides a creamy texture and tangy flavor. Use approximately the same quantity and crumble it evenly over the filling.
Why is my quiche watery?
The most common reasons are mushrooms that were not cooked long enough, spinach that retained excess water, or an egg custard that has not fully set. Cook and drain the vegetables thoroughly and bake until the center reaches a safe temperature.
How do I know when the quiche is done?
The edges should be set, the top should be lightly golden, and the center should no longer be liquid. An instant-read thermometer inserted into the center should register at least 160°F (71°C).
Can I make this quiche without a crust?
Yes. Grease a baking dish, add the vegetable and cheese filling, pour over the custard, and bake until set. The result will be lighter and naturally crustless.
Can I prepare this quiche the night before?
Yes. Bake the quiche, allow it to cool, and refrigerate it promptly. Reheat it in the oven before serving, or enjoy it cold if you prefer.
Can I freeze spinach and mushroom quiche?
Yes. Freeze it whole or in slices once completely cooled. Wrap it well and use it within approximately 2–3 months for best quality.
What mushrooms work best in this recipe?
Cremini and button mushrooms are excellent choices. Shiitake mushrooms can also be used for a stronger, more distinctive flavor.
Can I use milk instead of heavy cream?
Yes. Whole milk produces a lighter custard, although it may be less rich and creamy. Avoid adding too much liquid, as this can affect how the filling sets.
Is this quiche suitable for vegetarians?
It can be suitable for lacto-ovo vegetarians because it contains eggs and dairy but no meat. Check that your cheese is made with vegetarian-friendly rennet if this is important to your diet.
Final Thoughts
Spinach, Mushroom & Feta Quiche is a delicious combination of flaky pastry, golden mushrooms, tender spinach, creamy eggs, and flavorful cheese. It is easy enough for everyday meals yet elegant enough for brunch gatherings and special occasions.
With a few simple techniques, such as sautéing the vegetables thoroughly, blind-baking the crust, and allowing the quiche to rest before slicing, you can achieve a beautifully set filling and a golden, flavorful crust.
Serve it with a fresh salad or roasted vegetables for a meal that is comforting, versatile, and easy to prepare.