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Crustless Spinach Quiche

4.92 from 12 votes
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posted: 05/05/21

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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.

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

If you are planning a Mother’s Day Brunch for your mom this weekend, well first of all: Good Job! Mom’s are truly the best humans, and they deserve all the love. Second, I think you should make her this delicious and easy spinach quiche.

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. It is simple to make, but the combination of flavors is perfect. Without a crust it comes in as a low calorie breakfast, which just means that you can have a muffin too.

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. We want to cook the garlic, onion, and mushrooms, until they are nice and soft.
  2. Combine the egg mixture. Whisk together the eggs, milk, spices, and cheese until it is nice and smooth.
  3. Put it all together. Pour all the vegetables into the quiche pan and then top it with the egg mixture.
a piece of crustless spinach quiche on a white plate

Difference Between Frittatas and Crustless Quiches

Whenever I share my crustless quiche recipes, I get the inevitable question: Isn’t this just a frittata? It is not.

The beauty of a frittata is that you do a lot of the cooking on the stove top and throw it under the broiler. The stove top cooks the bottom of the frittata and the broiler cooks the top.

A quiche does all of the cooking in the oven. In this recipe, we sauté some vegetables on the stovetop. So in theory, you could add the eggs after the vegetables have been cooked and proceed with the frittata method. You could also add a crust to this recipe and make it a more traditional quiche.

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. This baby only has 5 grams of carbohydrates per slice!
  • It uses fresh spinach! 
  • It’s easy to customize. See our ideas for substitutions and variations below.
a spinach and mushroom quiche in a white quiche dish with a piece missing

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

Leftover Spinach and Mushroom Quiche

Left overs of this quiche recipe can be stored in the refrigerator for three to five days in a covered container. To reheat, cover and microwave for two minutes. You can reheat part or all of the quiche in the oven at 325 degrees for 20 minutes.

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

FAQ

Isn’t this just a frittata?

Nope. If you want to read my thoughts on that and the difference between the two, scroll up.

Can I make a crust with this spinach quiche recipe?

Yes! Follow the instructions and baking time in our asparagus quiche recipe.

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. Mozzarella would be another great option in this spinach and cheese quiche.

pice of crustless spinach quiche on a white plate with another piece 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:

If you make this Crustless Spinach Quiche or any of my other breakfast recipes, leave me a comment and let me know what you think.

a piece of crustless spinach quiche on a white plate
4.92 from 12 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.

Ingredients

  • 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

Instructions

  • 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

Video

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. Corrie says

    Thanks for pointing us towards that grief post. I lost 3 people last year (all 3 of them young or young-ish), and this year I’m already having people around me lose people they love.

    I love this phrase from your post: “bearing witness.” It’s like the Buddhist idea of the “broken open heart”–once you have it, you can truly understand and love all the other people who also have broken open hearts.

    I will also do my best to remember the phrase of grief being a debt that has to be paid, either now or later. It’s a super helpful concept!

  2. Lori says

    4 stars
    Where do I find the griefpost. I just lost my mom 3 weeks ago. Thank you.

    • Lisa Longley says

      I am so so sorry Lori. It is this one.

  3. Stephanie says

    5 stars
    Is the nutrition information for one serving?

    • Lisa Longley says

      Yes, or 1/8 of the total quiche.

  4. Anna says

    5 stars
    Can this be made with unsweetened almond milk?

    • Lisa Longley says

      I haven’t tried that, but I think it would work just fine.

  5. Maudie says

    Lisa,
    Thank you first for your crustless quiche recipe which I’ll be making very shortly for a neighbor and secondly for your Grief Post. Your advice is invaluable, I lost my husband three years ago and at times his loss is as fresh and raw today as it was three years ago. One of the greatest gifts you can give a friend is to indeed bear witness!
    Thank you,
    Maudie

    • Lisa Longley says

      Oh Maudie, I know exactly what you mean. It has been 8 years since I lost my son, and sometimes it feels like 8 minutes. I just came across this book and it is the BEST book I’ve read to date on grief. I highly recommend it. And I would pass it onto your support system too. “It’s Okay That You’re Not Okay.”

  6. Jane Ginter says

    I would have loved to see this recipe but the adds kept me from being able to scroll to it!

    • Lisa Longley says

      Hi Jane! Fortunately every post has a “jump to the recipe” button at the top of each post that will take you right to the recipe.

  7. Kathy says

    I’m going to make your quiche for a lunch this week with girlfriends. What would suggest along with it? Fruit? Salad? Muffins?

    • Lisa Longley says

      Hi Kathy! For a lunch, I think that a salad is a great idea to pair with this. I would probably make this Summer Salad or this Easy Arugula Salad. My Zucchini Muffins are seriously good. And if you wanted to make it a fuller lunch, this Greek Quinoa Salad will still keep things healthy but will leave people full.

  8. Molly English-Bowers says

    Can this be frozen? We have backyard hens and are overflowing with eggs. I am looking for creative ways to use the eggs, so freezing makes the most sense.

    • Lisa Longley says

      First of all, I’m so jealous you can have hens in your backyard. That’s awesome. Second, I think this would freeze fine, but I haven’t tried it. I do know that my Ham and Cheese Egg Muffins freeze VERY well.

      • Paula says

        Can this be made ahead of time then bake in morning

        • Lisa Longley says

          I haven’t tried that with this recipe. I think it would work, but it will likely need more time as it will be coming out of the cold refrigerator.

  9. Jean says

    5 stars
    Fantastic!! Delicious! I did drain the spinach, mushroom, onion, garlic mixture as mine was really watery. Then I added the egg, milk, cheese mixture. Cooked perfect! I would definitely make this again!

    • Lisa Longley says

      I’m so happy that you liked it, Jean!

  10. Sara says

    5 stars
    We love this quiche recipe!!! Did use gruyere cheese instead of Swiss because my husband doesn’t like Swiss. We’re in the middle of the big artic freeze here in Houston and plan on making this yummy quiche. Thank you.

    • Lisa Longley says

      So glad to hear you like it!

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