If you’re craving a wholesome, veggie-packed dish that feels as comforting as a classic quiche but without the heaviness of a crust, this Crustless Zucchini Tomato Quiche might be your new go-to recipe. It’s the kind of dish that effortlessly bridges the gap between healthy and indulgent, all while being incredibly easy to prepare. Whether enjoyed warm out of the oven or sliced cold straight from the fridge, this crustless quiche delivers savory satisfaction any time of day.

What makes this version special is its vibrant combination of fresh zucchini, juicy tomatoes, and just the right amount of cheese and seasonings. By removing the crust, we not only reduce the calories and carbs but also make the dish naturally gluten-free and much faster to assemble. This makes it a perfect choice for busy mornings, relaxed brunch spreads, or light dinners paired with a side salad.

In this long-form, SEO-optimized article, we’ll walk through everything you need to know about making the best crustless zucchini tomato quiche at home — from ingredients and step-by-step instructions to expert tips, variations, and serving ideas that will help you customize the dish to your taste.

Why You’ll Love This Crustless Zucchini Tomato Quiche

1. It’s incredibly easy to prepare.
With no crust to roll, chill, or blind-bake, this recipe becomes a simple mix-and-bake situation that anyone can master.

2. Naturally gluten-free.
Perfect for those avoiding gluten without needing specialty ingredients.

3. A great use of garden vegetables.
Zucchini and tomatoes flourish in the summer, making this dish a fantastic seasonal recipe.

4. Works for any meal.
Breakfast, brunch, lunch, or dinner — this quiche fits them all.

5. Customizable.
The flavor combinations are endless: add protein, swap veggies, or adjust herbs to create an entirely different dish each time.

Ingredients for Crustless Zucchini Tomato Quiche

Below is the clean, simple ingredient list that makes this dish shine. Fresh vegetables paired with rich eggs and cheese create a perfect balance of texture and flavor.

Ingredients

2 medium zucchini, thinly sliced
1 cup cherry tomatoes, halved
1 small onion, diced
3 cloves garlic, minced
1 tablespoon olive oil
6 large eggs
1 cup milk (whole, 2%, or non-dairy alternatives)
1 cup shredded mozzarella or Swiss cheese
½ cup grated Parmesan
1 teaspoon salt
½ teaspoon black pepper
1 teaspoon dried Italian herbs (or a blend of oregano + basil)
2 tablespoons chopped fresh parsley or basil (optional but recommended)

Instructions

Follow these easy, step-by-step instructions for perfect quiche every time.

How to Make Crustless Zucchini Tomato Quiche

Preheat your oven to 375°F (190°C). Butter or lightly oil a 9-inch pie dish and set aside.
Sauté the vegetables.
Heat olive oil in a large skillet over medium heat. Add onions and sauté until softened, about 3–4 minutes. Add garlic and cook for another 30 seconds.
Add zucchini.
Stir in the sliced zucchini and cook for 5–7 minutes, until softened and most moisture has evaporated.
Drain excess moisture.
This is crucial for preventing a watery quiche. Either let the veggies cook until dry or pat lightly with a paper towel.
Prepare the egg mixture.
In a mixing bowl, whisk together the eggs, milk, salt, pepper, Italian herbs, and Parmesan.
Layer the vegetables.
Transfer the cooked vegetables to the greased pie dish and spread evenly.
Add tomatoes.
Arrange the halved cherry tomatoes on top of the zucchini mixture.
Add cheese.
Sprinkle shredded mozzarella (or Swiss) evenly across the top.
Pour in the egg mixture.
Slowly pour the whisked eggs over the vegetables and cheese, ensuring everything is submerged.
Bake.
Bake in the preheated oven for 35–40 minutes, or until the center is set and the top is lightly golden.
Cool before slicing.
Allow the quiche to rest for at least 10 minutes. This makes slicing cleaner and helps flavors settle.

Tips for the Best Crustless Quiche

Prevent Excess Moisture
Zucchini contains a lot of water. Sauté it well, salt lightly, and ensure moisture is evaporated before assembling.

Use room-temperature eggs
This helps the quiche bake evenly and reduces the chance of over-cooking.

Add the cheese on top or inside
Both work beautifully, but adding some on top creates a golden layer.

Let it rest
Cooling slightly before cutting helps the quiche firm up.

Variations

1. Crustless Zucchini Tomato Feta Quiche

Swap mozzarella for crumbled feta and add spinach.

2. High-Protein Version

Add cooked bacon, ham, or shredded chicken.

3. Mediterranean Twist

Include olives, sun-dried tomatoes, or roasted peppers.

4. Dairy-Free Version

Use non-dairy milk (unsweetened) and omit cheese or use plant-based alternatives.

5. Add Fresh Herbs

Basil, thyme, or chives add incredible flavor.

Serving Suggestions

Serve warm with a simple green salad for a light lunch.
Add fresh fruit on the side for a brunch spread.
Pair with soup for a hearty dinner.
Serve cold the next day — it’s delicious chilled.

Storage & Meal Prep Tips

This quiche is fantastic for meal prep.

Refrigerator: Store in an airtight container for up to 4 days.
Freezer: Freeze tightly wrapped slices for up to 2 months.
Reheat: Warm in the oven at 325°F (165°C) for best texture.

Fun Facts

Quiche originated in France but has German roots in the medieval kingdom of Lothringen.
“Quiche Lorraine” was the first popularized version.
Crustless quiche is often referred to as a “frittata,” but quiche typically contains more dairy.

Crustless Zucchini Tomato Quiche

A light, fresh crustless quiche packed with zucchini, tomatoes, and savory herbs.

Print Recipe Pin Recipe

Prep Time 15

Cook Time 40

Total Time 55

Servings: 6 slices

Course: Dessert, Snack

Cuisine: American, Autumn

Calories: 220