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Crustless Spinach Quiche

4.86 from 7 votes

posted: 01/12/19

This post may contain affiliate links. Please read my disclosure policy
This post may contain affiliate links. Please read my disclosure policy

This Crustless Spinach Quiche is the perfect light breakfast! It is only 140 calories per slice. With only 20 minutes of hands on time you just can’t beat this spinach quiche recipe.

It is my Crustless Vegetable Quiche recipe reimagined into a delicious spinach mushroom quiche that will always have brunch guests asking you for the recipe.

overhead view of a crustless spinach quiche recipe in a white quiche dish

Almost two years ago now I made you this Crustless Vegetable Quiche Recipe. The recipe development happened to come at the same time as I was talking to lots of people in my life about grief and how to be there for people who are grieving. I won’t rewrite the post here, you can read it for yourself, but it felt incredibly important to write it. And since then I have had so many people comment about how they found that post at the exact right moment in their own grief journey.

So here I sit with this blog . . . and it’s a business, guys. It pays the bills, it will hopefully put my kids through college. It’s something I dedicate roughly 40 to 80 hours a week to. It’s a job. I’m going back and updating old posts. Writing them in such a way that I hope google will throw me a bone and help them be easier for you to find in the sea of other recipes.

But I refuse to touch that post. I have tried to go back and update that quiche recipe with the right keywords, and I just can’t. It seems too important to leave it as it is. So go read that post. Maybe it will help someone you know in your life. And then make this spinach quiche recipe from scratch, and the original too, because they both are so good. 

What I Love About this Spinach Quiche

  • It’s easy! If you can sauté vegetables, you can make this quiche.
  • It doesn’t have a crust. This makes it easier, and fewer calories. A double win for me.
  • It’s low carb. That’s not something I’m paying a lot of attention to, but if you are, this baby only has 5 grams of carbohydrates per slice!
  • It uses fresh spinach! 
  • It’s easy to customize! More on that in a minute.
a piece of crustless spinach quiche on a white plate

How Do You Make Spinach Quiche Without Crust?

I love my crustless quiche recipes because they are so simple. They are basically three simple steps and once you get it down, you can mix up the ingredients.

  1. Sauté all of the vegetables.
  2. Mix together the eggs, milk, spices, and cheese.
  3. Pour all the vegetables into the quiche pan and then top it with the egg mixture.
a spinach and mushroom quiche in a white quiche dish with a piece missing

What are the Ingredients in Crustless Spinach Quiche?

This spinach mushroom quiche comes together with minimal ingredients, which is another reason why I love it!

  • extra virgin olive oil
  • minced garlic
  • onion
  • mushrooms
  • spinach
  • eggs and egg whites
  • milk
  • swiss cheese
  • salt and pepper

Spinach Quiche Variations

Love this but want to mix it up a little?

  • Add some bacon before you start sautéing the veggies for a bacon spinach quiche.
  • Poor these in muffin tins (get tips from my Ham and Cheese Egg Muffin post) for mini spinach quiches.
  • Not in love with mushrooms? Leave them out and throw in some red peppers instead!
overhead view of two pieces of easy spinach quiche on white plates

Can I Use a Different Cheese Besides Swiss?

Absolutely! If you don’t love Swiss Cheese, pick something that you do love. This would be amazing as a spinach feta quiche. I struggle not putting feta on absolutely everything, so I skipped it this time. (See my Roasted Beet Salad or my Greek Salad Quinoa Bowls for good examples.)  Mozzarella would be another great option in this spinach and cheese quiche.

a spinach mushroom quiche in a white quiche dish with eggs in the background

What to Serve with this Quiche Recipe

This is such a great recipe if you are cooking for a crowd. It is simple and can be served warm or cold. Plus it is a great vegetarian option. If you are hosting and want more great brunch recipes that would pair well with this try:

pice of crustless spinach quiche on a white plate with another piece in the background
a piece of crustless spinach quiche on a white plate
4.86 from 7 votes

Crustless Spinach Quiche

Serves: 8 servings
(tap # to scale)
Prep: 10 minutes
Cook: 52 minutes
Total: 20 minutes
This Crustless Spinach Quiche is the perfect light breakfast! It is only 140 calories per slice. With only 20 minutes of hands on time you just can’t beat this spinach quiche recipe.


  • 1 tablespoon extra virgin olive oil
  • 2 garlic cloves minced
  • 1/2 yellow onion diced small
  • 8 ounces mini portabella mushrooms sliced (white mushrooms could also be used)
  • 5 cups spinach
  • 4 large eggs
  • 4 egg whites
  • 3/4 cup swiss cheese
  • 3/4 cup milk (I used skim)
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper


  • Preheat the oven to 350 degrees. Spray a nine inch quiche dish with cooking spray and set aside.
  • In a large skillet, heat the olive oil. Then add the garlic, onion, and mushrooms. Cook, sautéing until the mushrooms are soft. About 5 minutes.
  • Add in the spinach and stir until wilted. About two minutes. Remove from the heat and set aside.
  • In a large bowl whisk together the eggs, egg whites, milk, salt, pepper, and cheese.
  • Pour the vegetables into the quiche dish.  Add the egg mixture over the top.  Bake for 40 minutes or until the edges start to pull away from the side of the dish and the middle has just a slight jiggle to it.  
Calories: 143kcal (7%) Carbohydrates: 5g (2%) Protein: 10g (20%) Fat: 8g (12%) Saturated Fat: 3g (19%) Polyunsaturated Fat: 1g Monounsaturated Fat: 3g Cholesterol: 105mg (35%) Sodium: 300mg (13%) Potassium: 329mg (9%) Fiber: 1g (4%) Sugar: 3g (3%) Vitamin A: 2050IU (41%) Vitamin C: 8.3mg (10%) Calcium: 160mg (16%) Iron: 1.1mg (6%)
Author: Lisa Longley
Course: Breakfast
Cuisine: American


a piece of crustless spinach quiche on a white plate

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Crustless Spinach Quiche

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Hi! I'm Lisa Longley, and I am committed to giving you simple dinner ideas and recipes that are easy to make; recipes that will fill your home with joy. I am the owner and author of SimpleJoy.com and I'm so glad that you are here.

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  1. Sara says

    5 stars
    We love this quiche!!! I’ve made it with a crust and without. Usually I add bacon. I do use grayer cheese because my husband doesn’t like Swiss. Thanks

    • Lisa Longley says

      I’m so happy that you like it!

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5 Secrets to Stress Free Dinners