Crustless Garden Vegetable Quiche Recipe tastes creamy, cheesy, and full of fresh veggie flavor, with a golden top and tender custard inside. It works perfectly for busy home cooks who want a healthy breakfast, brunch, or light dinner on the table in about 45 minutes. I first baked a version of this on a chaotic Sunday with three hungry kids and one confused dog, and it still turned out great, so you know it’s forgiving.
Why Crustless Garden Vegetable Quiche Recipe Is Worth It
This crustless garden vegetable quiche recipe skips the fuss of pastry yet still feels cozy and satisfying. You load it with colorful vegetables, a silky egg mixture, and just enough cheese to feel special without feeling heavy.
You save time because you skip chilling, rolling, and blind baking a crust, and you still get a sliceable, brunch worthy dish. The recipe also uses everyday ingredients, so you probably have most of what you need in your fridge and pantry already.
“This Crustless Garden Vegetable Quiche Recipe tastes like weekend brunch but fits into a weeknight schedule, and my whole family devoured it. ★★★★★”
Ingredients You Need
Eggs and dairy
- 6 large eggs
- 1 cup milk, any kind
- Whole milk gives the richest texture.
- Use 2% if you want it a bit lighter.
- 1/2 cup half and half or heavy cream
- This adds that custardy, café style texture.
- 1 cup shredded cheese
- Cheddar, Swiss, Gruyère, Monterey Jack, or a blend all work.
- I often use pre shredded cheese from Tillamook or store brand when I feel lazy.
- 1/4 cup grated Parmesan cheese
- Adds nutty flavor and helps the top brown.
Vegetables
Use about 2 to 2 1/2 cups total chopped vegetables. Aim for a mix of colors and textures.
- 1 tablespoon olive oil or avocado oil
- 1/2 medium yellow onion, finely chopped
- 1 small bell pepper, chopped
- Any color works; red and orange taste sweeter.
- 1 small zucchini, diced
- 1 cup broccoli florets, chopped small
- 1 cup baby spinach, roughly chopped
- 1 clove garlic, minced
- 2 green onions, sliced (optional, for extra flavor and color)
You can use frozen vegetables as a shortcut. Thaw them, squeeze out extra moisture, and then sauté briefly to keep the quiche from turning watery.
Seasonings
- 1 teaspoon kosher salt
- 1/4 teaspoon black pepper
- 1/2 teaspoon dried Italian seasoning or dried thyme
- 1/4 teaspoon smoked paprika or sweet paprika
- Pinch of red pepper flakes (optional, for a little heat)
Equipment
- 9 inch pie dish or 9 inch round baking dish
- A glass or ceramic dish works best for even baking.
- Large skillet
- Mixing bowl
- Whisk
- Measuring cups and spoons
- Cutting board and knife
If you only have an 8 inch dish, you can still bake this quiche. Hold back about 1/2 cup of the egg mixture so it does not overflow and add 5 minutes to the bake time.
Quick Tips & substitutions
- Sauté vegetables until they soften and lose extra moisture so the quiche sets nicely.
- Use a mix of milk and cream for the best custard texture; use all milk if you want a lighter version.
- Swap in frozen spinach, broccoli, or mixed vegetables; thaw and squeeze dry before you sauté.
- Use any shredded cheese you like; sharper cheeses such as cheddar or Gruyère give more flavor with less quantity.
- Grease the pie dish well so slices release cleanly and stay pretty.
- Let the quiche rest at least 10 to 15 minutes before slicing so it holds together.
- Bake on a middle rack so the top browns without burning and the center cooks through.
- Add fresh herbs such as parsley, chives, or basil after baking for a bright finish.
How to Make Crustless Garden Vegetable Quiche Recipe
Step 1: Prep the oven and dish
Preheat your oven to 375°F. Grease a 9 inch pie dish with butter or a light coating of oil. Set the dish aside while you prep the vegetables and egg mixture.
Step 2: Sauté the vegetables
Heat the olive oil in a large skillet over medium heat. Add the chopped onion and bell pepper and cook 3 to 4 minutes until they soften and smell sweet. Stir in the zucchini and broccoli and cook another 3 to 4 minutes until they turn bright and tender.
Add the garlic and cook 30 seconds until it smells fragrant. Toss in the chopped spinach and green onions and cook just until the spinach wilts. Turn off the heat and let the vegetables cool for a few minutes so they do not scramble the eggs later.
Step 3: Mix the eggs and dairy
Crack the eggs into a large mixing bowl. Whisk until the yolks and whites blend smoothly and look slightly frothy. Pour in the milk and cream and whisk again until the mixture looks uniform.
Stir in the salt, pepper, Italian seasoning, and paprika. Add the Parmesan and half of the shredded cheese. Mix until everything combines.
Step 4: Assemble the quiche
Spread the sautéed vegetables evenly in the greased pie dish. Pour the egg and dairy mixture over the vegetables, tilting the dish gently if needed so the liquid reaches all the edges. Sprinkle the remaining shredded cheese over the top in an even layer.
Place the pie dish on a baking sheet to catch any drips and to make it easier to move in and out of the oven. Take a quick look to make sure the filling sits below the rim of the dish.
Step 5: Bake
Slide the baking sheet with the quiche onto the middle rack. Bake 30 to 35 minutes, until the edges puff and the center looks set but still slightly jiggly. If you insert a knife near the center, it should come out mostly clean with just a bit of moisture.
If the top browns too quickly, tent a piece of foil loosely over the dish during the last 5 to 10 minutes. Once it finishes baking, remove the quiche from the oven and place it on a cooling rack.
Step 6: Rest and slice
Let the crustless garden vegetable quiche rest 10 to 15 minutes. This short rest helps the custard finish setting and makes slicing much easier. Slice into 6 to 8 wedges with a sharp knife.
Serve warm, at room temperature, or chilled, depending on your mood and how impatient your household feels. I usually lose at least one slice to “quality control” before it reaches the table.
Recipe Variations
- Gluten free: The recipe already skips crust, so it fits a gluten free menu as written; just check labels on cheese and seasonings.
- Dairy light: Use all 2% milk and reduce cheese to 3/4 cup; the texture stays tender, just a bit less rich.
- Dairy free: Use unsweetened almond milk or oat milk and a dairy free shredded cheese; add 1 tablespoon nutritional yeast for extra flavor.
- Vegan: Use a chickpea flour batter or a tofu based filling instead of eggs and dairy, and load it with vegetables and dairy free cheese.
- Low carb: Focus on lower carb vegetables such as spinach, broccoli, zucchini, and mushrooms; skip starchy veggies like potatoes or corn.
- Protein boost: Add cooked chicken breast, turkey sausage, or black beans for extra protein.
- Herb lovers: Stir in fresh basil, parsley, dill, or chives right before baking for a garden fresh flavor.
Ways to Serve
- Pair with a simple green salad and lemony vinaigrette for a light lunch or dinner.
- Serve with roasted potatoes or sweet potatoes for a heartier plate.
- Add a side of fresh fruit salad or sliced berries for a bright, colorful brunch spread.
- Pack a chilled slice in a lunchbox with carrot sticks and hummus.
- Cut into small squares and serve as a finger food at baby showers or holiday brunches.
Storage Success
Let the crustless garden vegetable quiche cool to room temperature, then cover it tightly or transfer slices to airtight containers. Store in the refrigerator for up to 4 days. Reheat slices in the microwave in 20 to 30 second bursts or in a 325°F oven for about 10 minutes until warm. Enjoy leftovers cold straight from the fridge if you feel like living on the edge; the texture stays firm and the flavors blend even more by the next day.
Crustless Garden Vegetable Quiche Recipe
Ingredients
Method
- Preheat the oven to 375°F (190°C). Grease a 9-inch pie dish with butter or oil and set aside.
- Heat the olive oil in a large skillet over medium heat. Add the chopped onion and bell pepper and cook for 3 to 4 minutes until softened and fragrant.
- Stir in the zucchini and broccoli and cook for another 3 to 4 minutes until bright and just tender.
- Add the garlic and cook for about 30 seconds until fragrant. Add the spinach and green onions (if using) and cook just until the spinach wilts. Remove from heat and let the vegetables cool slightly.
- In a large mixing bowl, whisk the eggs until smooth and slightly frothy. Add the milk and half and half or cream and whisk until well combined.
- Stir in the salt, pepper, Italian seasoning, and paprika. Add the Parmesan and half of the shredded cheese and mix to combine.
- Spread the sautéed vegetables evenly in the prepared pie dish. Pour the egg mixture over the vegetables, tilting the dish gently so the liquid reaches all edges.
- Sprinkle the remaining shredded cheese evenly over the top. Place the pie dish on a baking sheet to catch any drips.
- Bake on the middle rack for 30 to 35 minutes, until the edges are puffed and the center is just set but still slightly jiggly. A knife inserted near the center should come out mostly clean.
- If the top browns too quickly, tent the quiche loosely with foil during the last 5 to 10 minutes of baking. Remove from the oven and place on a cooling rack.
- Let the quiche rest for 10 to 15 minutes so the custard finishes setting. Slice into 6 to 8 wedges and serve warm, at room temperature, or chilled.
Notes
Approximate per 1 of 6 servings, made with whole milk, half and half, and cheddar cheese: 230–260 calories; fat 17 g; saturated fat 8 g; carbohydrates 7 g; fiber 1 g; sugars 4 g; protein 14 g; sodium 430 mg. Values will vary based on exact vegetables, cheese type, and dairy used.