Crustless Garden Vegetable Quiche Recipe tastes rich and cheesy with tender veggies in every bite, like a lighter cousin of classic quiche that still feels brunch-worthy. It works perfectly for busy home cooks who want a make-ahead breakfast, easy lunch, or light dinner in about 45 minutes total. I have baked some version of this quiche almost every Sunday for years, usually while still in pajamas and clutching a giant mug of coffee.
Why You Should Try This Crustless Garden Vegetable Quiche Recipe
This crustless garden vegetable quiche recipe packs in protein, fiber, and a full serving of vegetables without the fuss of rolling pie dough. You still get a custardy, cheesy center and golden top, just with fewer carbs and less prep.
The recipe also handles fridge clean-out duty like a champ. You can swap veggies, change cheeses, and adjust herbs based on what you already have, which saves both time and grocery money.
“This Crustless Garden Vegetable Quiche Recipe tastes like café brunch at home, without the price tag or the long wait in line. ★★★★★”
Ingredients You’ll Need
You can scale this recipe for a 9 inch pie dish or an 8 by 8 inch baking dish. A ceramic or glass dish works best, since it heats evenly and gives a nice golden edge.
Eggs and Dairy
- 6 large eggs
- 1 cup whole milk or half and half
- Use whole milk for a lighter texture.
- Use half and half for a richer, creamier quiche.
- 1/4 cup plain Greek yogurt or sour cream
- This adds tang and extra protein.
- 1 cup shredded cheese
- Cheddar, Swiss, Gruyère, Monterey Jack, or a blend all work well.
- I often use a bagged shredded cheese mix when I feel lazy, and it still tastes great.
- 1/4 teaspoon fine sea salt
- 1/4 teaspoon black pepper
- 1/4 teaspoon smoked paprika or sweet paprika
- 1/4 teaspoon dried thyme or Italian seasoning
- Optional: pinch of red pepper flakes for a little heat
Vegetables
Use about 2 to 2 1/2 cups total chopped vegetables. Aim for a mix of soft, quick cooking veggies and a few that add texture.
- 1 tablespoon olive oil or avocado oil
- 1/2 medium yellow onion, finely chopped
- 1 small bell pepper, chopped
- Any color works. Red and yellow taste sweeter.
- 1 small zucchini, quartered lengthwise and sliced
- 1 cup chopped fresh spinach or baby kale, loosely packed
- 1/2 cup cherry tomatoes, halved
- Pat them dry with a paper towel so they do not water down the custard.
- 1 clove garlic, minced
- Optional veggie add-ins or swaps
- 1/2 cup sliced mushrooms
- 1/2 cup broccoli florets, chopped small
- 1/4 cup thawed frozen peas
- 1/4 cup corn kernels, fresh or frozen
You can use frozen vegetables as a shortcut. Thaw and pat them dry first so they do not release water into the quiche.
Pantry Shortcuts and Substitutions
- Use pre chopped onions and peppers from the produce section to save time.
- Use frozen spinach instead of fresh. Thaw, then squeeze out as much water as possible.
- Use lactose free milk and cheese if you need a lower lactose option.
- Use egg whites for part of the eggs. Replace 2 whole eggs with 4 egg whites for a lighter version.
Fresh Herbs and Toppings
- 2 tablespoons chopped fresh parsley, chives, or basil
- Extra shredded cheese for the top, about 1/4 cup
- Optional: sliced green onions for garnish
Equipment List
- 9 inch pie dish or 8 by 8 inch baking dish
- Large skillet
- Medium mixing bowl
- Whisk
- Cutting board and sharp knife
- Measuring cups and spoons
- Rubber spatula or wooden spoon
Tips & Tricks
- Sauté vegetables until they lose excess moisture so the quiche sets nicely and does not turn watery.
- Cut vegetables small and uniform so they cook evenly and slice cleanly.
- Grease the baking dish well with oil or butter so slices release easily.
- Use room temperature eggs and milk for a smoother custard that bakes evenly.
- Do not overload with vegetables; stick to about 2 to 2 1/2 cups so the egg mixture still covers everything.
- Sprinkle a thin layer of cheese on the bottom of the dish before adding veggies to create a tasty barrier.
- Let the quiche rest at least 10 minutes after baking so it slices neatly.
- Bake on the middle rack so the top browns without overcooking the center.
- Use a toothpick test; insert it near the center and check for mostly set custard with a slight jiggle.
- Cool leftovers completely before covering to avoid condensation and soggy texture.
How to Make Crustless Garden Vegetable Quiche Recipe
Step 1: Sauté veggies and aromatics
Heat oil in a large skillet over medium heat. Add onions and bell peppers and cook until they soften and turn translucent, about 5 to 7 minutes. Stir in zucchini and any other firm vegetables like broccoli or mushrooms and cook 3 to 4 minutes more. Add garlic and cook 30 to 60 seconds, until it smells fragrant, then season lightly with salt and pepper.
Add spinach or baby kale to the skillet and stir until the greens wilt, about 1 to 2 minutes. Turn off the heat. Gently fold in cherry tomatoes and any quick cooking add-ins like peas or corn. Taste the vegetable mixture and adjust salt and pepper so it tastes well seasoned before you add it to the eggs.
Step 2: Mix the egg custard
Crack the eggs into a medium mixing bowl. Whisk until the yolks and whites combine and look slightly frothy. Add milk or half and half, Greek yogurt or sour cream, salt, pepper, paprika, and dried thyme or Italian seasoning. Whisk again until the mixture looks smooth and uniform.
Stir in about 3/4 cup of the shredded cheese, saving the rest for the top. Add chopped fresh herbs if you use them. The custard should taste lightly seasoned at this point, since the vegetables already carry some flavor.
Step 3: Assemble the quiche
Preheat your oven to 375°F and grease your pie dish or baking dish with oil or butter. Sprinkle a small handful of shredded cheese over the bottom of the dish. Spread the sautéed vegetables evenly in the dish, breaking up any large clumps.
Pour the egg mixture slowly over the vegetables, tilting the dish slightly if needed so the custard settles into all the gaps. Tap the dish gently on the counter to release any air bubbles. Sprinkle the remaining cheese over the top for a golden, cheesy crust.
Step 4: Bake until set
Place the dish on the middle rack of the oven. Bake 28 to 35 minutes, depending on your oven and dish size. The edges should look puffed and lightly browned, and the center should look mostly set with a slight jiggle when you nudge the dish.
Check doneness by inserting a toothpick or thin knife near the center. It should come out mostly clean, with no liquid egg clinging to it. Remove the quiche from the oven and let it rest on a cooling rack for at least 10 minutes before slicing.
Step 5: Slice and serve
Use a sharp knife to cut the crustless garden vegetable quiche into wedges or squares. Slide a thin spatula underneath each piece to lift it out cleanly. Garnish with extra herbs or sliced green onions if you like.
Serve warm, at room temperature, or chilled straight from the fridge. Each version tastes slightly different, which keeps leftovers interesting.
What to Serve with Crustless Garden Vegetable Quiche Recipe
This crustless garden vegetable quiche recipe pairs well with a simple green salad tossed with lemon and olive oil. Add a side of fresh fruit like berries, melon, or orange slices for natural sweetness. You can also serve it with roasted potatoes or sweet potatoes if you want a heartier plate.
Kids often enjoy it with toast and a little jam on the side. A big mug of coffee, hot tea, or a smoothie rounds out the meal without much extra effort.
Storage Options
- Cool the quiche completely, then cover the dish tightly or transfer slices to airtight containers and store in the fridge for up to 4 days.
- Reheat single slices in the microwave for 45 to 60 seconds, or reheat several slices in a 325°F oven for 10 to 15 minutes until warm.
- Freeze individual slices by wrapping each piece in plastic wrap, then placing them in a freezer bag; store up to 2 months.
- Reheat frozen slices in a 325°F oven for about 20 to 25 minutes, or thaw overnight in the fridge and warm gently so the texture stays tender.
Crustless Garden Vegetable Quiche Recipe
Ingredients
Instructions
- Heat the olive oil or avocado oil in a large skillet over medium heat.
- Add the chopped onion and bell pepper and cook until softened and translucent, about 5 to 7 minutes.
- Stir in the zucchini and any other firm vegetables like mushrooms or broccoli and cook for 3 to 4 minutes more.
- Add the minced garlic and cook for 30 to 60 seconds, until fragrant, then season lightly with salt and pepper.
- Add the spinach or baby kale and cook, stirring, until just wilted, about 1 to 2 minutes. Turn off the heat.
- Gently fold in the cherry tomatoes and any quick-cooking add-ins like peas or corn. Taste the vegetable mixture and adjust the seasoning with salt and pepper.
- Crack the eggs into a medium mixing bowl and whisk until the yolks and whites are fully combined and slightly frothy.
- Add the milk or half and half, Greek yogurt or sour cream, salt, black pepper, paprika, dried thyme or Italian seasoning, and red pepper flakes if using. Whisk until smooth and uniform.
- Stir in about 3/4 cup of the shredded cheese, reserving the remaining cheese for the top. Add chopped fresh herbs and stir to combine.
- Preheat the oven to 375°F (190°C). Grease a 9-inch pie dish or 8-by-8-inch baking dish with oil or butter.
- Sprinkle a small handful of shredded cheese over the bottom of the dish to create a light barrier.
- Spread the sautéed vegetables evenly in the prepared dish, breaking up any large clumps.
- Slowly pour the egg mixture over the vegetables, tilting the dish gently if needed so the custard settles into all the gaps. Tap the dish lightly on the counter to release air bubbles.
- Sprinkle the remaining shredded cheese evenly over the top.
- Place the dish on the middle rack of the preheated oven.
- Bake for 28 to 35 minutes, or until the edges are puffed and lightly browned and the center is mostly set with a slight jiggle when nudged.
- Check doneness by inserting a toothpick or thin knife near the center; it should come out mostly clean with no liquid egg clinging to it.
- Remove the quiche from the oven and let it rest on a cooling rack for at least 10 minutes before slicing.
- Use a sharp knife to cut the crustless garden vegetable quiche into wedges or squares.
- Slide a thin spatula underneath each piece to lift it out cleanly.
- Garnish with extra herbs or sliced green onions if desired.
- Serve warm, at room temperature, or chilled, as a make-ahead breakfast, easy lunch, or light dinner.
Notes
Approximate per 1 of 6 servings (using whole milk, sour cream, and 1 cup shredded Cheddar): 190–220 calories; fat 13 g; saturated fat 6 g; carbohydrates 7 g; fiber 1 g; sugars 4 g; protein 13 g; sodium 330 mg. Values will vary based on vegetables used, cheese type, and portion size.
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