Crustless Zucchini Tomato Quiche brings together bright zucchini ribbons and ruby tomato slices nestled in a fluffy egg base, all crowned with bubbling Parmesan and mozzarella. This gluten-free, low-carb delight is beginner-friendly and ready in under an hour, making it perfect for a cozy breakfast, a light lunch, or even a simple dinner. Whether you’re craving something fresh or seeking a fuss-free veggie bake, this recipe is bound to become a new favorite—so grab your apron and let’s dive in!
Key Ingredients
Before we get cooking, let’s gather the essentials that make this quiche so flavorful and satisfying:
- 1 tablespoon olive oil: Provides a silky base for sautéing onion and garlic, infusing the quiche with savory depth.
- 1 medium onion, chopped: Adds sweetness and structure, softening into a tender layer that complements the veggies.
- 2 cloves garlic, minced: Packs in aromatic punch and brings out the best in the vegetables.
- 2 medium zucchinis, thinly sliced: Offers tender, juicy ribbons that keep the quiche light and refreshing.
- 2 medium tomatoes, thinly sliced: Introduces vibrant color and tangy sweetness, balancing the creamy egg mixture.
- 6 eggs: Create a fluffy, protein-rich custard that binds all the ingredients together.
- 1/2 cup milk: Lightens the custard, ensuring a smooth, creamy texture without heaviness.
- 1/2 teaspoon salt: Enhances all the flavors while seasoning the custard just right.
- 1/4 teaspoon black pepper: Adds a gentle kick and rounds out the savory notes.
- 1/4 teaspoon dried basil: Infuses a subtle herbal aroma that pairs perfectly with tomatoes.
- 1/4 cup grated Parmesan cheese: Delivers a sharp, nutty flavor that melts into every crevice.
- 1/2 cup shredded mozzarella cheese: Creates that glorious, gooey topping that stretches with every bite.
How To Make Crustless Zucchini Tomato Quiche
Ready to transform these simple ingredients into a gorgeous, crust-free quiche? With just a few straightforward steps—sautéing, layering, whisking, and baking—you’ll have a stunning dish that’s surprisingly easy to assemble. The combination of pre-cooking the zucchini, arranging those colorful layers, and pouring a well-seasoned egg custard over the top ensures each slice is tender, flavorful, and perfectly set.
1. Preheat the oven to 375°F (190°C) and grease a 9-inch pie dish or baking pan with a little olive oil to prevent sticking.
2. Heat the olive oil in a skillet over medium heat, then add the chopped onion and minced garlic and sauté until the onion becomes translucent, about 4 minutes.
3. Add the sliced zucchinis to the skillet and cook for another 5 minutes, stirring occasionally, until the zucchini begins to soften. Remove from heat.
4. Arrange the cooked zucchini and sliced tomatoes evenly in the prepared baking dish, creating a colorful vegetable bed.
5. In a mixing bowl, whisk together the eggs, milk, salt, black pepper, and dried basil until the mixture is smooth and fully combined.
6. Pour the egg mixture over the layered vegetables in the baking dish, allowing it to seep into all the nooks.
7. Sprinkle the grated Parmesan and shredded mozzarella evenly over the top of the egg and vegetable mixture for a cheesy finish.
8. Bake in the preheated oven for 30 to 35 minutes or until the quiche is set in the center and lightly golden on top.
9. Remove from the oven and let rest for 5 minutes before slicing and serving warm to allow the custard to firm up.
Serving Suggestions
This crustless quiche is versatile and pairs wonderfully with a variety of sides and garnishes. Whether you’re feeding brunch guests or enjoying a casual family meal, consider these ideas to elevate each serving:
- Fresh Herb Salad: Toss mixed greens with a light lemon vinaigrette and top with chopped basil or parsley for a crisp contrast.
- Crusty Bread: Slice a warm baguette or ciabatta and serve alongside to soak up any cheesy custard that escapes.
- Fruit Platter: Offer seasonal fruit like berries, melon, or grapes to balance the savory richness with natural sweetness.
- Drizzle of Olive Oil: Finish each slice with a drizzle of extra virgin olive oil and a sprinkle of flaky sea salt for gourmet flair.
Tips For Perfect Crustless Zucchini Tomato Quiche
Sometimes the smallest tweaks make the biggest difference! Keep these friendly tips in mind as you whip up your quiche:
- This quiche is naturally gluten-free and low-carb without a crust.
- You can swap mozzarella for cheddar or feta for variation.
- Store any leftovers covered in the refrigerator for up to 3 days.
- Serve warm or at room temperature for best flavor.
How To Store It
If you manage to have leftovers (or plan ahead!), storing this quiche properly will keep it tasting fresh and delicious:
- Refrigerator: Once cooled completely, place the quiche in an airtight container or cover tightly with plastic wrap. Keep for up to 3 days.
- Freezer: Wrap individual slices in plastic wrap then in foil to prevent freezer burn. Freeze for up to 2 months.
- Thawing: Transfer frozen slices to the refrigerator overnight before reheating to ensure even warming.
- Reheating: Preheat your oven to 350°F (175°C) and warm slices on a baking sheet for 10–12 minutes, or microwave each slice for 1–2 minutes until heated through.
Frequently Asked Questions
Here are quick answers to common queries about this quiche:
- How long does it take to prepare and bake the Crustless Zucchini Tomato Quiche?
It takes about 10 minutes to chop and sauté the vegetables, 5 minutes to assemble and whisk the eggs, and 30 to 35 minutes to bake. Plan for roughly 45 to 50 minutes total, plus a 5-minute rest.
- Can I substitute different cheeses for Parmesan and mozzarella?
Yes. You can swap mozzarella for cheddar, Monterey Jack, or Swiss for a sharper flavor, and use feta or goat cheese instead of Parmesan for a tangy twist.
- What’s the best way to prevent the quiche from becoming soggy due to the zucchini and tomatoes?
Before assembling, lightly salt the sliced zucchini and tomatoes and let them sit in a colander for 5–10 minutes. Pat dry with paper towels to remove excess moisture.
- How can I tell when the quiche is fully cooked?
The quiche is done when the center springs back slightly when pressed, the top is lightly golden, and a knife inserted into the middle comes out clean or with a few moist crumbs.
- Can I make this quiche in advance and reheat it?
Absolutely. After baking and cooling, cover tightly and refrigerate for up to 3 days. Reheat at 350°F (175°C) for 10–12 minutes or microwave individual slices.
- Is it possible to freeze leftover quiche, and how should I do it?
Yes, wrap whole or sliced portions in plastic wrap and foil to prevent freezer burn, and store for up to 2 months. Thaw overnight in the fridge, then reheat at 350°F (175°C) for 15–20 minutes.
- Can I add other vegetables or proteins to this recipe?
You can. Try sautéed bell peppers, mushrooms, spinach, or cooked asparagus. For protein, stir in cooked bacon, ham, sausage, or smoked salmon—just cook added ingredients fully.
- How should I adjust the recipe if I use a deeper or larger baking dish?
If your dish is deeper, you may need to increase to 8 eggs and add 1/4 cup more milk, then bake for 35–40 minutes. If it’s larger and shallower, check for doneness around 25 minutes.
What Makes This Special
What really sets this quiche apart is its perfect blend of simplicity and flavor—bright veggies, a fluffy egg custard, and bubbling cheeses all come together without any fuss of a crust. It’s beginner-friendly, naturally gluten-free, and ready in under an hour, making it a lifesaver for busy mornings or impromptu gatherings. Feel free to print and save this recipe for later, and don’t forget to share your tweaks, questions, or tasty feedback in the comments below!
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Crustless Zucchini Tomato Quiche
- Prep Time: 15 mins
- Cook Time: 40 mins
- Total Time: 55 minutes
- Yield: 6 servings
- Category: Breakfast
Description
Tender zucchini ribbons and juicy tomato rounds meld in seasoned eggs, releasing delicate juices that mingle with Parmesan and mozzarella as the top browns to a golden hue, creating a creamy, crust-free quiche that feels both light and satisfying.
Ingredients
- 1 tablespoon olive oil
- 1 medium onion, chopped
- 2 cloves garlic, minced
- 2 medium zucchinis, thinly sliced
- 2 medium tomatoes, thinly sliced
- 6 eggs
- 1/2 cup milk
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- 1/4 teaspoon dried basil
- 1/4 cup grated Parmesan cheese
- 1/2 cup shredded mozzarella cheese
Instructions
- Preheat the oven to 375°F (190°C) and grease a 9-inch pie dish or baking pan with a little olive oil.
- Heat the olive oil in a skillet over medium heat, then add the chopped onion and minced garlic and sauté until the onion becomes translucent, about 4 minutes.
- Add the sliced zucchinis to the skillet and cook for another 5 minutes, stirring occasionally, until the zucchini begins to soften. Remove from heat.
- Arrange the cooked zucchini and sliced tomatoes evenly in the prepared baking dish.
- In a mixing bowl, whisk together the eggs, milk, salt, black pepper, and dried basil until fully combined.
- Pour the egg mixture over the layered vegetables in the baking dish.
- Sprinkle the grated Parmesan and shredded mozzarella evenly over the top of the egg and vegetable mixture.
- Bake in the preheated oven for 30 to 35 minutes or until the quiche is set in the center and lightly golden on top.
- Remove from the oven and let rest for 5 minutes before slicing and serving warm.
Notes
- This quiche is naturally gluten-free and low-carb without a crust.
- You can swap mozzarella for cheddar or feta for variation.
- Store any leftovers covered in the refrigerator for up to 3 days.
- Serve warm or at room temperature for best flavor.