Crustless Garden Vegetable Quiche Recipe packs tender veggies, fluffy eggs, and cheesy goodness into one pan, perfect for busy mornings or light dinners in about 45 minutes total. It suits meal preppers, veggie lovers, and anyone who wants a low-fuss, crustless quiche that still feels cozy and satisfying. I first baked this on a chaotic Tuesday, and my kids inhaled it before I even sat down.
Why Make This Crustless Garden Vegetable Quiche Recipe at Home
You control everything at home, from the amount of cheese to how many veggies you pile in. You skip the crust, so you cut down on carbs and prep time while you keep all the flavor and comfort.
This recipe uses simple ingredients that you probably already keep in your fridge and pantry. You mix it in one bowl, pour it into one pan, and the oven does the rest while you clean up or drink coffee in peace.
“This Crustless Garden Vegetable Quiche Recipe tastes like weekend brunch but fits into a weekday schedule, and my family licks the pan clean every time. ★★★★★”
Ingredients You Need
Eggs and dairy
- 6 large eggs
- 1 cup milk
- Whole milk gives a richer texture.
- Use 2% if you prefer a lighter quiche.
- 1/2 cup half-and-half or heavy cream
- This adds a custardy texture.
- If you skip it, add 1/4 cup extra milk and 1/4 cup plain Greek yogurt for some richness.
- 1 cup shredded cheese
- Cheddar, Colby Jack, or a blend works great.
- Use pre-shredded cheese from a bag for speed, or shred a block for better melt.
- 1/4 cup grated Parmesan cheese
- Adds salty, nutty flavor.
Vegetables
Use about 2 to 2 1/2 cups total chopped veggies. Aim for a mix of colors and textures.
- 1 cup broccoli florets, chopped small
- Fresh or frozen both work.
- If you use frozen, thaw and pat dry to avoid extra moisture.
- 1/2 cup red bell pepper, diced
- 1/2 cup zucchini, diced small
- 1/2 cup cherry tomatoes, halved or quartered
- 1/2 small yellow onion, finely diced
- 1 cup fresh spinach, roughly chopped
- You can use frozen spinach if you thaw it and squeeze it very dry.
Flavor boosters
- 2 cloves garlic, minced
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1/2 teaspoon onion powder
- 1/2 teaspoon dried Italian seasoning or dried basil and oregano mix
- 1/4 teaspoon crushed red pepper flakes
- Optional, for a little kick.
Pantry shortcuts and swaps
- Use a frozen mixed vegetable blend if you feel short on time. Thaw and pat dry before you add it.
- Use pre-chopped onions and peppers from the produce section to speed up prep.
- Use a carton of liquid egg whites for half the eggs if you want to cut cholesterol. Use 3 eggs plus 3/4 cup egg whites.
Oil and toppings
- 1 tablespoon olive oil or avocado oil
- 2 tablespoons chopped fresh herbs
- Chives, parsley, or green onions work well.
Equipment list
- 9 inch pie dish or 9 inch square baking dish
- Large mixing bowl
- Whisk
- Cutting board and sharp knife
- Skillet for sautéing vegetables
- Measuring cups and spoons
- Rubber spatula
Tips & Mistakes
- Sauté watery veggies like zucchini, spinach, and mushrooms so they release moisture before baking.
- Pat thawed frozen vegetables very dry so the quiche sets nicely and does not turn soggy.
- Chop vegetables small and fairly even so they cook through at the same time.
- Cool sautéed veggies slightly before mixing with eggs so the eggs do not start to cook in the bowl.
- Grease the baking dish well so slices lift out cleanly and keep their shape.
- Do not overbake, or the quiche turns rubbery and dry. Pull it when the center barely jiggles.
- Let the quiche rest 10 to 15 minutes after baking so it slices neatly and the texture settles.
- Use enough salt and seasoning, since eggs and veggies need bold flavor to shine.
- Spread veggies evenly in the dish so every slice gets a good mix and does not taste bland.
- Use a glass or ceramic dish instead of a dark metal pan, which can brown the edges too fast.
How to Make Crustless Garden Vegetable Quiche Recipe
Step 1: Prep the oven and pan
Preheat the oven to 375°F. Grease a 9 inch pie dish or 9 inch square baking dish with oil or nonstick spray. Set the dish aside while you prep the vegetables and egg mixture.
Step 2: Chop and sauté the vegetables
Chop broccoli, bell pepper, zucchini, onion, and spinach into small, bite-size pieces. Heat 1 tablespoon oil in a skillet over medium heat.
Add onion and bell pepper and cook 3 to 4 minutes until they soften. Add broccoli and zucchini and cook 3 to 4 minutes more until they turn bright and slightly tender. Add garlic and spinach and cook 1 to 2 minutes until the spinach wilts and the garlic smells fragrant.
Turn off the heat and spread the vegetables on a plate or tray to cool slightly. This step keeps the eggs from cooking too soon when you mix everything.
Step 3: Mix the egg custard
Crack the eggs into a large mixing bowl. Add milk, half-and-half or cream, salt, pepper, onion powder, Italian seasoning, and crushed red pepper flakes.
Whisk until the mixture looks smooth and slightly frothy. Stir in the shredded cheese and Parmesan with a spatula. Taste a small spoonful of the mixture and adjust salt or pepper if you want more flavor.
Step 4: Assemble the quiche
Spread the cooled vegetables evenly in the greased baking dish. Scatter cherry tomato pieces over the top.
Pour the egg and cheese mixture slowly over the vegetables, tilting the dish slightly if needed so the liquid spreads evenly. Use a spatula to nudge any stubborn veggies down into the custard so they do not sit dry on top.
Step 5: Bake
Place the dish on the middle rack of the oven. Bake 28 to 35 minutes, depending on your oven and the depth of your dish.
Check at 25 minutes and watch the edges. The quiche finishes when the edges look golden, the top looks set, and the center jiggles slightly when you gently shake the dish. A knife inserted near the center should come out mostly clean with a few moist bits.
Step 6: Rest and garnish
Remove the quiche from the oven and place it on a cooling rack. Let it rest 10 to 15 minutes so the custard firms up and slices cleanly.
Sprinkle chopped fresh herbs over the top. Slice into wedges or squares and serve warm, or let it cool fully for meal prep containers.
Variations I've Tried
-
Mushroom and Swiss
Swap half the broccoli for sliced mushrooms and sauté them until they brown. Use Swiss or Gruyere cheese instead of cheddar. This version tastes rich and savory and works well for brunch. -
Southwest veggie quiche
Use bell pepper, corn, black beans, and a little jalapeño. Season with cumin and chili powder and use pepper jack cheese. Top with avocado slices and salsa at serving time. -
Greek style crustless quiche
Use spinach, red onion, tomatoes, and chopped artichoke hearts. Swap cheddar for feta and add a pinch of dried oregano and dill. This version tastes bright and tangy and pairs nicely with a cucumber salad. -
Protein packed version
Add 1 cup cooked turkey sausage or chicken sausage rounds. Use part-skim mozzarella and a bit of Parmesan. This version keeps things lighter while it still fills you up. -
All green garden quiche
Use broccoli, zucchini, spinach, peas, and green onions. Add a handful of fresh basil or parsley. This version looks pretty and makes a nice way to use up garden produce.
How to Serve Crustless Garden Vegetable Quiche Recipe
Serve this Crustless Garden Vegetable Quiche Recipe warm or at room temperature with a simple side salad or sliced fruit. Add roasted potatoes or sweet potatoes if you want a more filling meal. Kids often enjoy it with toast and a side of ketchup, while adults may prefer hot sauce or salsa. Pair it with coffee, tea, or a cold glass of orange juice for a full breakfast or brunch.
How to store
-
Fridge
- Cool the quiche completely, then store slices in airtight containers.
- Keep in the refrigerator for up to 4 days.
-
Freezer
- Wrap individual slices tightly in plastic wrap, then place them in a freezer bag.
- Freeze for up to 2 months for best texture.
-
Reheating
- Reheat slices in a 350°F oven or toaster oven for 10 to 15 minutes until hot in the center.
- Use the microwave for a quick option, about 45 to 60 seconds per slice, but expect a slightly softer texture.
Crustless Garden Vegetable Quiche Recipe
Ingredients
Instructions
- Preheat the oven to 375°F (190°C). Grease a 9-inch pie dish or 9-inch square baking dish with oil or nonstick spray and set aside.
- Chop the broccoli, red bell pepper, zucchini, onion, and spinach into small, bite-size pieces. Heat the olive oil in a skillet over medium heat.
- Add the onion and bell pepper to the skillet and cook for 3 to 4 minutes until they begin to soften. Add the broccoli and zucchini and cook for another 3 to 4 minutes until bright and slightly tender.
- Stir in the garlic and spinach and cook for 1 to 2 minutes more, until the spinach wilts and the garlic is fragrant. Remove from heat and spread the vegetables on a plate or tray to cool slightly.
- Crack the eggs into a large mixing bowl. Add the milk, half-and-half or heavy cream, salt, black pepper, onion powder, Italian seasoning, and crushed red pepper flakes if using.
- Whisk the egg mixture until smooth and slightly frothy. Stir in the shredded cheese and grated Parmesan with a spatula until evenly combined. Taste a small spoonful and adjust seasoning if desired.
- Spread the cooled sautéed vegetables evenly in the prepared baking dish. Scatter the cherry tomatoes over the top of the vegetables.
- Slowly pour the egg and cheese mixture over the vegetables, tilting the dish gently as needed so the liquid spreads evenly. Use a spatula to press any vegetables down so they are mostly submerged in the custard.
- Place the dish on the middle rack of the oven and bake for 28 to 35 minutes, until the edges are golden, the top looks set, and the center still jiggles slightly when you gently shake the dish. A knife inserted near the center should come out mostly clean.
- Remove the quiche from the oven and place it on a cooling rack. Let it rest for 10 to 15 minutes so the custard firms up and slices cleanly.
- Sprinkle with chopped fresh herbs, slice into wedges or squares, and serve warm or at room temperature. Cool completely if you plan to store for meal prep.
Notes
Approximate per serving (1 of 6): 230–260 calories; fat 17–19 g; saturated fat 7–9 g; carbohydrates 7–9 g; fiber 1–2 g; sugars 4–5 g; protein 13–15 g; sodium 520–650 mg. Values will vary based on specific cheeses, milk or cream used, add-ins, and portion size.
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