Zucchini Mushroom Quiche

Bright, garden-fresh zucchini and earthy mushrooms join a creamy egg custard and melted Gruyère cheese in this Zucchini Mushroom Quiche, making it the ultimate savory pie for brunch or a light dinner. With a flaky, buttery crust and a golden, herby finish, each slice bursts with flavor and comfort. Whether you’re a beginner cook or a seasoned baker, this easy quiche recipe is sure to impress—and it’s perfect for sharing with friends (or keeping all to yourself!).

Key Ingredients

Gathering top-quality ingredients sets the stage for a stellar quiche:

• 1 prepared pie crust: A buttery, flaky base that cradles all the savory fillings.
• 2 medium zucchini, sliced: Fresh summer squash adds tender texture and mild sweetness.
• 8 ounce mushrooms, sliced: Earthy flavor that complements the creamy custard.
• 1 small onion, chopped: Provides aromatic depth and slight natural sweetness.
• 2 clove garlic, minced: Infuses a subtle punch of savory warmth.
• 1 tablespoon olive oil: For sautéing vegetables until tender and lightly caramelized.
• 3 large eggs: Forms the rich custard that binds the quiche together.
• 1 cup heavy cream: Delivers a luxuriously smooth and creamy filling.
• 1/2 cup milk: Balances richness for a lighter, silkier custard.
• 1 cup shredded Gruyere cheese: Melts beautifully for a nutty, gooey topping.
• 1/2 teaspoon salt: Essential seasoning to bring out all the flavors.
• 1/4 teaspoon black pepper: Adds a gentle, warming spice.
• 1/2 teaspoon dried thyme: Offers an herbal note that brightens each bite.

How To Make Zucchini Mushroom Quiche

Let’s stroll through assembling this quiche, from prepping the crust to baking until perfectly set. You’ll start by lining your pan, then sauté fresh veggies to soften and develop flavor. Next, whisk together the custard base—eggs, cream, and milk—before layering everything in the crust. Finally, pop it in the oven and wait for that irresistible golden top. It’s easier than it sounds, and you’ll love how simple techniques deliver professional results!

1. Preheat oven to 375°F (190°C) and place the prepared pie crust in a 9-inch quiche pan, gently pressing it into the edges so it fully lines the pan.

2. Heat 1 tablespoon olive oil in a skillet over medium heat, then add the chopped onion and minced garlic, cooking until fragrant and translucent, about 2 minutes.

3. Add the sliced zucchini and sliced mushrooms, season with salt, black pepper, and dried thyme, and sauté until the vegetables are tender and lightly browned, about 5 minutes. Remove from heat.

4. In a mixing bowl, whisk together the 3 large eggs, 1 cup heavy cream, and 1/2 cup milk until the mixture is completely smooth and pale.

5. Spread the sautéed vegetables evenly over the bottom of the pie crust, then sprinkle the 1 cup shredded Gruyere cheese in an even layer on top.

6. Slowly pour the egg and cream mixture over the vegetables and cheese, filling the crust up to the rim without overflowing.

7. Bake in the preheated oven for 35 to 40 minutes, or until the quiche is set around the edges and the center springs back with a light golden surface.

8. Allow the quiche to cool for 10 minutes before slicing and serving to ensure clean, neat pieces.

Serving Suggestions

Whether you’re hosting brunch or enjoying a solo lunch, these serving ideas will elevate your quiche experience. Pair contrasting textures and flavors to complement the creamy custard and savory fillings. From fresh salads to warm sides, there’s a way to make every bite feel special and balanced.

• Serve with a crisp mixed green salad tossed in a lemon vinaigrette for a bright, refreshing contrast.
• Offer fresh fruit slices like melon or berries to add a juicy, sweet note alongside the savory quiche.
• Pair with a bowl of light vegetable soup, such as tomato bisque, for a comforting, cozy meal.
• Accompany with toasted baguette or crusty rolls, brushing them with garlic butter for extra indulgence.

Tips For Perfect Zucchini Mushroom Quiche

Nailing the little tricks can turn your quiche from good to unforgettable. Here’s how to get those clean slices, rich flavors, and endless variety every time:

• For a richer flavor, substitute half-and-half for the milk to make the custard extra creamy.
• Let the quiche rest for about 10 minutes after baking so the custard finishes setting and yields clean, neat slices.
• Add chopped spinach or cooked bacon to the sautéed vegetables for extra color, texture, and variety.
• Store leftovers covered in the refrigerator for up to 3 days to maintain freshness and flavor.

How To Store It

Keeping your quiche tasting fresh is all about proper storage. Whether you plan to enjoy leftovers tomorrow or later this week, follow these guidelines to lock in moisture and flavor without letting the crust go soggy.

• Refrigerate in an airtight container: Once cooled, cover slices with plastic wrap or place them in a sealed box—good for up to 3 days.
• Freeze for longer storage: Wrap individual slices tightly in plastic wrap and aluminum foil, then freeze in a labeled bag for up to 1 month.
• Reheat gently: Warm refrigerated slices in a 350°F oven for 10–12 minutes to restore crisp edges, or microwave on medium power for 1–2 minutes.
• Protect the crust: If you plan to freeze, consider pre-baking the crust for 8–10 minutes (blind bake) to keep the bottom extra crisp.

Frequently Asked Questions

Here are quick answers to common questions to make your quiche journey smooth and stress-free:

• Q: How long does it take to prepare and bake the Zucchini Mushroom Quiche?

A: It takes about 15 minutes to prepare the vegetables, whisk the custard, and assemble the quiche, plus 35 to 40 minutes of baking time in a 375°F (190°C) oven. Allow an additional 10 minutes for the quiche to cool and finish setting before slicing and serving.

• Q: Can I use a different dairy substitute instead of milk and heavy cream?

A: Yes, you can substitute half-and-half for the milk to achieve a richer texture, or use a combination of whole milk and sour cream for a tangier flavor. Just maintain the total liquid volume at about 1½ cups to ensure the custard sets properly.

• Q: How can I tell when the quiche is fully cooked and set?

A: The quiche is done when the edges are firm and the center no longer jiggly. A light golden top is a good visual cue. You can also insert a knife into the center—if it comes out clean or with just a few moist crumbs, the quiche is ready.

• Q: Is it possible to prebake (blind bake) the pie crust to avoid a soggy bottom?

A: Yes, you can blind bake the crust for 8 to 10 minutes at 375°F before adding the filling. Prick the bottom with a fork, line it with parchment paper, and fill it with pie weights or dried beans. This extra step helps keep the crust crisp under the moist filling.

• Q: What other ingredients can I add to customize this quiche?

A: You can stir in a handful of chopped spinach, diced bell peppers, or cooked bacon or ham to the sautéed vegetables before spreading them in the crust. Just ensure additional ingredients are pre-cooked and well-drained to prevent excess moisture.

• Q: Which cheeses work best if I don’t have Gruyere?

A: Swiss cheese, fontina, or a mild white cheddar make excellent substitutes for Gruyere. They melt smoothly and provide a creamy texture without overpowering the delicate zucchini and mushroom flavors.

• Q: How should I store and reheat leftovers?

A: Cover any leftover slices with plastic wrap or place them in an airtight container and refrigerate for up to three days. To reheat, place slices on a baking sheet and warm at 350°F for 10–12 minutes, or microwave on medium power for 1–2 minutes until heated through.

What Makes This Special

This Zucchini Mushroom Quiche shines because it balances bright garden flavors with a lusciously creamy custard and that satisfyingly flaky crust—no need to fuss over fancy techniques. It’s beginner-friendly, endlessly customizable, and perfect for any meal that calls for a comforting, savory bite. Go ahead and print this recipe, save it for later, and let me know in the comments how your quiche turns out or if you have any fun twists to share!

Print Recipe

Zucchini Mushroom Quiche

Author: Jason Brooks Courses: Appetizer

Difficulty: Beginner Prep Time 20 mins Cook Time 40 mins Rest Time 10 mins Total Time 1 hr 10 mins

Calories: 450

Description

Garden-fresh zucchini and mushrooms join fluffy custard and melted Gruyère in a crisp crust, filling your kitchen with rich, herby aromas and a golden, savory finish.

Ingredients

Scale

1/2x 1x 2x 3x

• 1 prepared pie crust

• 2 medium zucchini sliced

• 8 ounce mushrooms sliced

• 1 small onion chopped

• 2 clove garlic minced

• 1 tablespoon olive oil

• 3 large eggs

• 1 cup heavy cream

• ¹⁄₂ cup milk

• 1 cup shredded Gruyere cheese

• ¹⁄₂ teaspoon salt

• ¹⁄₄ teaspoon black pepper

• ¹⁄₂ teaspoon dried thyme

Instructions

1. Preheat oven to 375°F (190°C) and place the pie crust in a 9-inch quiche pan.
2. Heat olive oil in a skillet over medium heat, then add onion and garlic and cook until fragrant, about 2 minutes.
3. Add zucchini and mushrooms, season with salt, pepper, and thyme, and sauté until vegetables are tender, about 5 minutes. Remove from heat.
4. In a bowl, whisk together eggs, heavy cream, and milk until smooth.
5. Spread the sautéed vegetables evenly in the pie crust, then sprinkle the shredded cheese over the top.
6. Pour the egg and cream mixture over the vegetables and cheese, filling the crust.
7. Bake in the preheated oven for 35 to 40 minutes, or until the quiche is set and the top is lightly golden.
8. Allow the quiche to cool for 10 minutes before slicing and serving.

Note

• For a richer flavor, substitute half-and-half for the milk.
• Let the quiche rest to finish setting for cleaner slices.
• Add chopped spinach or cooked bacon for extra variety.
• Store leftovers covered in the refrigerator for up to 3 days.

Keywords: zucchini quiche,mushroom quiche,vegetable quiche,brunch recipe,savory pie,easy quiche