Crustless Garden Vegetable Quiche Recipe

Crustless Garden Vegetable Quiche Recipe tastes rich and cheesy with tender veggies, yet it still feels light enough for a weekday breakfast or brunch. It works well for busy home cooks who want a make-ahead meal in about 45–55 minutes from start to finish. I first baked a version of this quiche in a tiny apartment kitchen with a wobbly oven, so I promise your setup probably beats mine.

Why Make This Crustless Garden Vegetable Quiche Recipe at Home

This crustless garden vegetable quiche recipe skips the fussy pie crust but still delivers that custardy, cheesy comfort. You load it with colorful vegetables, which adds flavor, texture, and a nice little nutrition boost without extra effort.

You also control the ingredients, so you can adjust the cheese, swap veggies, or make it dairy free or low carb. Leftovers taste great cold or reheated, so one pan covers breakfast, lunch, or a quick dinner.

“This crustless garden vegetable quiche recipe tastes like a fancy brunch cafe special, but it comes together with simple ingredients and always earns clean plates at my table. ★★★★★”

Ingredients You Need

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 bite.
• 1/4 cup plain Greek yogurt or sour cream
  • Greek yogurt adds protein and a slight tang.
  • Sour cream gives a softer, custard-like texture.
• 1 cup shredded cheese
  • Cheddar, Colby Jack, or Monterey Jack melt nicely.
  • Use pre-shredded cheese from a bag for speed, or shred a block for better melt and flavor.

Vegetables

You can mix and match, but keep the total volume around 2 to 2 1/2 cups of cooked vegetables so the quiche sets well.

• 1 tablespoon olive oil or avocado oil
• 1 small yellow onion, finely chopped
• 1 small bell pepper, chopped
  • Any color works; red and yellow taste sweeter.
• 1 small zucchini, diced
• 1 cup chopped fresh spinach or baby kale
• 1/2 cup cherry tomatoes, halved or quartered
• 1/2 cup mushrooms, sliced (optional)
• 2 cloves garlic, minced

Seasonings

• 1/2 teaspoon kosher salt, plus more to taste
• 1/4 teaspoon black pepper
• 1/4 teaspoon smoked paprika or sweet paprika
• 1/4 teaspoon dried Italian seasoning or dried oregano
• Pinch of red pepper flakes (optional, for a little heat)

Optional add-ins

• 2 tablespoons chopped fresh herbs
  • Parsley, chives, basil, or dill all work nicely.
• 2 tablespoons grated Parmesan for extra savory flavor
• 1/4 cup cooked crumbled turkey sausage or chicken sausage if you want extra protein

Equipment

• 9 inch pie dish or 9 inch round baking dish
  • Glass or ceramic works best for even baking.
• Medium skillet for sautéing vegetables
• Medium mixing bowl for the egg mixture
• Whisk
• Cutting board and sharp knife
• Measuring cups and spoons
• Oven mitts
• Wire rack or stovetop trivet for cooling

Tips & Mistakes

• Sauté vegetables until they lose excess moisture, or the quiche can turn watery in the center.
• Cool the cooked vegetables slightly before you add the egg mixture, or the eggs can start to cook too early.
• Grease the baking dish well so slices lift out cleanly and keep their shape.
• Keep the total cooked vegetable volume around 2 to 2 1/2 cups so the quiche sets and does not turn dense.
• Use room temperature eggs if possible, which helps the custard bake more evenly.
• Do not overbake; pull it when the center still jiggles slightly, since it continues to set as it cools.
• Let the quiche rest at least 10 to 15 minutes before slicing so the structure holds.
• Season the vegetables in the pan and season the egg mixture too, or the final flavor can taste flat.
• Use a light hand with watery vegetables like tomatoes and zucchini; seed them or pat them dry to avoid soggy texture.
• Shred your own cheese if you want a smoother melt, since bagged cheese often includes anti-caking starch.

How to Make Crustless Garden Vegetable Quiche Recipe

Step 1: Sauté veggies and aromatics

Heat oil in a medium skillet over medium heat. Add onions and cook 3 to 4 minutes until they turn translucent and start to soften. Stir in bell pepper, zucchini, and mushrooms if you use them, and cook 5 to 7 minutes until the vegetables soften and most moisture cooks off. Add garlic, Italian seasoning, smoked paprika, red pepper flakes, and a pinch of salt, then cook 1 minute until the garlic smells fragrant.

Add spinach and tomatoes to the skillet. Stir and cook 1 to 2 minutes until the greens wilt and the tomatoes soften slightly. Taste the vegetables and adjust salt and pepper so they taste well seasoned. Turn off the heat and set the skillet aside so the vegetables cool for a few minutes.

Step 2: Prep the baking dish and oven

Heat the oven to 375°F. Grease a 9 inch pie dish with a little oil or butter, making sure you coat the bottom and sides. Sprinkle a small handful of shredded cheese over the bottom of the dish, which adds flavor and helps prevent sticking.

Spread the slightly cooled vegetables in an even layer in the prepared dish. If you use fresh herbs, scatter half of them over the vegetables. Keep the dish near your mixing bowl so you can pour the egg mixture in without spilling.

Step 3: Whisk the egg mixture

Crack the eggs into a medium mixing bowl. Add milk or half-and-half, Greek yogurt or sour cream, salt, pepper, and Parmesan if you use it. Whisk until the mixture turns smooth and no streaks of egg white remain.

Stir in the remaining shredded cheese and any cooked sausage or extra add-ins. Fold in the remaining fresh herbs. Taste a small drop of the mixture on a clean finger and adjust salt if needed, since bland custard leads to bland quiche.

Step 4: Combine and bake

Pour the egg mixture evenly over the vegetables in the pie dish. Gently shake the dish or use a fork to nudge vegetables so the custard settles into all the gaps. Sprinkle a little extra cheese on top if you want a more golden, cheesy crust on the surface.

Place the dish on the middle rack of the oven. Bake 28 to 35 minutes, until the edges puff and turn light golden and the center still has a slight jiggle when you nudge the dish. If the top browns too quickly, tent a piece of foil loosely over the dish for the last 5 to 10 minutes.

Step 5: Cool, slice, and serve

Set the baked quiche on a wire rack or stovetop trivet. Let it cool at least 10 to 15 minutes so the custard finishes setting and slices hold together. Run a thin knife around the edge if needed, then cut into 6 to 8 wedges.

Serve warm, at room temperature, or chilled from the fridge. I often bake it at night, chill it, and slice it in the morning for an easy breakfast. Leftovers taste great and reheat well, so your future self will thank you.

Variations I've Tried

• Broccoli cheddar crustless quiche
  Use 1 to 1 1/2 cups finely chopped steamed broccoli instead of zucchini and mushrooms. Pair it with sharp cheddar and a little extra black pepper. This version tastes like a cozy broccoli cheddar soup in quiche form.

• Mediterranean garden quiche
  Swap bell pepper for chopped roasted red peppers and add a handful of chopped artichoke hearts and a few sliced olives. Use feta and mozzarella instead of cheddar. Add oregano and basil for a bright, herb-forward flavor.

• Southwest vegetable quiche
  Use bell pepper, corn, black beans, and a little diced jalapeño. Season with cumin, chili powder, and smoked paprika. Top with pepper Jack cheese and serve with salsa and avocado slices.

• Dairy light version
  Use 2 eggs plus 4 egg whites instead of 6 whole eggs if you want to lighten it a bit. Swap whole milk for unsweetened almond milk and use a smaller amount of a strong cheese like sharp cheddar or Parmesan. The texture stays tender, just a bit less rich.

• Extra protein version
  Add cooked turkey sausage, chicken sausage, or diced ham in a thin layer over the vegetables before you pour in the eggs. Keep the meat amount to about 1/2 cup so the quiche still sets well. This version works well for hearty breakfast fans.

How to Serve Crustless Garden Vegetable Quiche Recipe

Serve this crustless garden vegetable quiche recipe warm with a simple green salad and fresh fruit for a balanced brunch or lunch. Add a side of roasted potatoes or sweet potatoes if you want something more filling. Kids often enjoy it with toast and a little ketchup or salsa on the side. Pair it with coffee, tea, or a cold glass of orange juice for a complete meal.

How to store

• Cool the quiche completely at room temperature before you cover it, which prevents condensation and soggy texture.
• Store slices in an airtight container in the fridge for up to 4 days.
• Freeze individual slices tightly wrapped in plastic or foil, then place them in a freezer bag for up to 2 months.
• Reheat refrigerated slices in the microwave for 45 to 60 seconds, or in a 325°F oven for 10 to 15 minutes until warm in the center.
• Reheat frozen slices in a 325°F oven for 20 to 25 minutes, or thaw overnight in the fridge and warm them as you would fresh leftovers.

Crustless Garden Vegetable Quiche Recipe

Crustless Garden Vegetable Quiche tastes rich and cheesy with tender veggies, yet still feels light enough for a weekday breakfast or brunch. It skips the crust for less fuss but keeps all the custardy comfort, and comes together in about 45–55 minutes from start to finish.

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Prep Time 20 minutes mins

Cook Time 35 minutes mins

Total Time 55 minutes mins

Servings: 6

Course: Breakfast

Ingredients

  

• 6 large eggs
• 1 cup whole milk or half-and-half
• 1/4 cup plain Greek yogurt or sour cream
• 1 cup shredded cheese (cheddar, Colby Jack, or Monterey Jack)

• 1 tablespoon olive oil or avocado oil
• 1 small yellow onion, finely chopped
• 1 small bell pepper, chopped
• 1 small zucchini, diced
• 1 cup chopped fresh spinach or baby kale
• 1/2 cup cherry tomatoes, halved or quartered
• 1/2 cup mushrooms, sliced
• 2 cloves garlic, minced

• 1/2 teaspoon kosher salt, plus more to taste
• 1/4 teaspoon black pepper
• 1/4 teaspoon smoked paprika or sweet paprika
• 1/4 teaspoon dried Italian seasoning or dried oregano
• 1 pinch red pepper flakes
• 2 tablespoons chopped fresh herbs (parsley, chives, basil, or dill)
• 2 tablespoons grated Parmesan
• 1/4 cup cooked crumbled turkey sausage or chicken sausage

Instructions

 

1. Heat the oil in a medium skillet over medium heat. Add the onion and cook for 3 to 4 minutes, until translucent and starting to soften.
2. Stir in the bell pepper, zucchini, and mushrooms if using. Cook for 5 to 7 minutes, until the vegetables soften and most of the moisture cooks off.
3. Add the garlic, Italian seasoning, smoked paprika, red pepper flakes if using, and a pinch of salt. Cook for about 1 minute, until fragrant.
4. Add the spinach and tomatoes. Cook for 1 to 2 minutes, just until the greens wilt and the tomatoes soften slightly. Taste and season the vegetables with more salt and pepper if needed. Remove from the heat and let the vegetables cool slightly.

1. Preheat the oven to 375°F (190°C). Grease a 9-inch pie dish or round baking dish with oil or butter, coating the bottom and sides well.
2. Sprinkle a small handful of the shredded cheese over the bottom of the dish. Spread the slightly cooled vegetables in an even layer over the cheese. If using fresh herbs, scatter half of them over the vegetables.

1. In a medium mixing bowl, whisk together the eggs, milk or half-and-half, Greek yogurt or sour cream, salt, pepper, and Parmesan if using, until smooth and no streaks of egg white remain.
2. Stir in the remaining shredded cheese, any cooked sausage if using, and the remaining fresh herbs. Taste a tiny drop of the mixture and adjust the salt if needed.

1. Pour the egg mixture evenly over the vegetables in the prepared dish. Gently shake the dish or nudge the vegetables with a fork so the custard settles into all the gaps. Add a little extra cheese on top if you like.
2. Place the dish on the middle rack of the oven and bake for 28 to 35 minutes, until the edges are puffed and lightly golden and the center still has a slight jiggle when gently shaken. If the top browns too quickly, tent loosely with foil during the last few minutes of baking.

1. Transfer the baked quiche to a wire rack or stovetop trivet and let it cool for at least 10 to 15 minutes so the custard finishes setting.
2. Run a thin knife around the edge if needed, then slice into 6 to 8 wedges. Serve warm, at room temperature, or chilled.

Notes

Nutrition Information
Approximate per serving (1 of 6, made with whole milk, Greek yogurt, 1 cup cheddar, and no meat): 220–260 calories; fat 16–18 g; saturated fat 7–9 g; carbohydrates 7–9 g; fiber 1–2 g; sugars 4–5 g; protein 12–14 g; sodium 350–450 mg. Values will vary based on vegetables used, cheese type, added meats, and exact portion size.

Storage:
Cool completely, then refrigerate in an airtight container for up to 4 days. Freeze individual slices tightly wrapped and placed in a freezer bag for up to 2 months. Reheat refrigerated slices in the microwave for 45–60 seconds or in a 325°F oven for 10–15 minutes. For frozen slices, reheat in a 325°F oven for 20–25 minutes, or thaw overnight in the fridge before reheating.