Crustless Cheese and Vegetable Quiche

If you’re looking for a simple, flavorful breakfast that’s both nutritious and satisfying, this Crustless Cheese and Vegetable Quiche is a fantastic choice. Packed with eggs, melty cheese, roasted red peppers, spinach, and caramelized onions, it delivers all the comforting flavors of traditional quiche without the extra effort of making a crust.

This recipe is perfect for busy mornings, weekend brunches, or meal prep, and it comes together in under an hour. Because it’s crustless, it’s naturally lower in carbohydrates while still being rich, fluffy, and full of flavor.

Each slice offers a delicious combination of creamy eggs, savory vegetables, and gooey cheese that makes it feel like a special breakfast even on a weekday.

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Why I Love This Recipe

This crustless quiche is one of those recipes that always works.

First, it’s incredibly easy to prepare with minimal prep and just one mixing bowl.

Second, it’s packed with protein and vegetables, making it both filling and nutritious.

And finally, it’s perfect for meal prep since it reheats beautifully throughout the week.

I often serve it alongside simple breakfast favorites like Protein-Packed Egg Muffins for Easy Meal Prep when preparing breakfasts ahead of time.

Ingredients

Here’s everything you’ll need to make this savory breakfast bake.

• 5 large eggs
• 1 cup milk
• 1 cup mozzarella or goat cheese
• 1/2 cup roasted red peppers, diced
• 1/2 cup baby spinach, chopped
• 1/4 cup caramelized onions
• 1/2 teaspoon Italian seasoning
• Salt and black pepper, to taste
• Pinch red pepper flakes (optional)

These ingredients create a rich, flavorful quiche filled with colorful vegetables and creamy cheese.

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Ingredient Swaps and Notes

This recipe is very flexible and easy to customize.

Cheese options
Mozzarella provides a mild creamy flavor, while goat cheese adds tangy richness. Cheddar, feta, or Swiss also work well.

Vegetable variations
Mushrooms, zucchini, tomatoes, or broccoli can easily replace or supplement the vegetables in this recipe.

Milk alternatives
Half-and-half will make the quiche richer, while almond or oat milk can be used for a lighter option.

Extra protein
Cooked bacon, ham, or sausage can be added for a heartier version.

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How to Make Crustless Cheese and Vegetable Quiche

1. Preheat the oven

Preheat your oven to 375°F (190°C) and lightly grease a pie dish or square baking dish.

2. Whisk the eggs and milk

In a large bowl, whisk together the eggs, milk, Italian seasoning, salt, and black pepper.

3. Add the fillings

Stir in the cheese, roasted red peppers, chopped spinach, and caramelized onions.

4. Pour into the baking dish

Transfer the mixture into the prepared dish and spread evenly.

5. Bake the quiche

Bake for 30–35 minutes until the center is set and the top is lightly golden.

6. Cool and slice

Allow the quiche to cool slightly before slicing and serving.

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Tips for Success

Don’t overbake
Remove the quiche when the center is just set to keep the texture creamy.

Sauté watery vegetables first
If adding mushrooms or zucchini, cook them first to remove excess moisture.

Let the quiche rest before slicing
Resting helps the eggs firm up and makes slicing easier.

Use a well-greased dish
This prevents sticking and helps the slices come out cleanly.

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Serving Suggestions and Pairings

This crustless quiche is perfect as part of a breakfast or brunch spread.

Pair it with sweet breakfast classics like Classic French Toast – The Golden Breakfast Everyone Loves for a balanced brunch menu.

For weekend brunch gatherings, fluffy stacks like Fluffy Buttermilk Pancakes – The Secret to a Perfect Breakfast Stack complement the savory quiche beautifully.

If you’re preparing meals ahead of time, options like Make-Ahead Breakfast Burritos – The Freezer-Friendly Morning Game Changer are also excellent additions to your breakfast rotation.

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Nutritional Information (Per Serving)

Approximate values:

• Calories: 210
• Fat: 14 g
• Carbohydrates: 5 g
• Protein: 14 g

This quiche is a great option for a protein-rich breakfast that’s both satisfying and balanced.

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Storage and Leftover Tips

This dish stores well and is perfect for meal prep.

Refrigerator
Store slices in an airtight container for up to 4 days.

Freezer
Freeze individual slices for up to 2 months.

Reheating
Warm slices in the microwave or oven until heated through.

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More Recipes You’ll Love

If you enjoy easy breakfast recipes like this one, try these favorites:

• Protein-Packed Egg Muffins for Easy Meal Prep
• The Ultimate Overnight Oats Guide – 1 Base Recipe, 6 Easy Flavors
• Classic French Toast – The Golden Breakfast Everyone Loves
• Fluffy Buttermilk Pancakes – The Secret to a Perfect Breakfast Stack
• Make-Ahead Breakfast Burritos – The Freezer-Friendly Morning Game Changer

These recipes make it easy to build a delicious breakfast or brunch menu.

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Final Thoughts

This Crustless Cheese and Vegetable Quiche is a simple yet flavorful dish that proves breakfast can be both easy and satisfying. With creamy eggs, savory vegetables, and melted cheese, every bite is comforting and delicious.

Whether you’re planning a weekend brunch or prepping breakfasts for the week, this recipe is sure to become a staple in your kitchen.

If you give it a try, I’d love to hear how it turned out. Leave a comment, share your favorite ingredient combinations, and follow along for more recipes from Jason Griffith at Chef Maniac.