Crustless Spinach and Cheese Quiche

Our Crustless Spinach and Cheese Quiche is loaded with 3 kinds of cheese, frozen chopped spinach, eggs, and chopped onions, and it bursts with fabulous flavor!  No milk, nor cream is needed for this recipe, just 6 ingredients creating a very light and delicious tasting quiche that will keep you feeling full and satisfied for hours.  

We love crustless quiches.  They are low maintenance, highly nutritional, Keto-friendly, and excellent for breakfast, brunch, or for an easy weeknight meal. 

Make ahead and reheat, this crustless quiche is perfect to whip up in minutes when you need one, and they’re wonderful to serve all year round. 

Our Italian mothers and grandmothers always made simple meals like this quiche, only they called them “frittata” or “an omelet.”  

And it was always 100% gluten-free and crustless. 

Crustless Spinach and Cheese Quiche by

This Crustless Spinach and Cheese Quiche is SO delicious! 

I made it the other day and it was gone in minutes. 

Everyone was having seconds and even thirds, it turned out so good, everyone raved about it all day.  The next morning, my husband even enjoy it cold (leftover), for breakfast.

So, what is Quiche?   

  • The “quiche” is from French cuisine and it became popular when Julia Child first broadcasted the recipe on television. 
  • It’s made in a pastry crust filled with eggs, cream, and sometimes meat or other veggies, and it’s baked in the oven. 
  • The quiche Lorraine is the most popular one made with bacon and it can be served either warm or cold. 
Crustless Spinach and Cheese Quiche by

Ingredients Needed for our Crustless Spinach Quiche (your shopping list):

  • frozen chopped spinach – 1 package (10-ounces)
  • 1 large onion
  • eggs – at least 5 large eggs, or 6 small eggs
  • shredded sharp cheddar cheese
  • shredded mozzarella cheese
  • grated Parmesan cheese
  • olive oil, and some butter
  • seasonings – salt and black pepper
  • one 9 – inch baking pie dish
  • olive oil cooking spray –  to spray the baking dish

How To Make this Crustless Spinach Quiche? 

1.  For this recipe, you will need to saute the onions for 5 minutes or more to soften and caramelize them.  

Steps and photos of cooking onions in a skillet. by

2.  Meanwhile, whisk 5 eggs along with the three kinds of cheese and seasonings. 

Eggs whisked in a silver bowl, by

3.  Next, transfer the thawed spinach to a small strainer and press down with a spatula or a large spoon to squeeze out the excess water. 

4.  Then transfer the spinach to the onions in the skillet and continue to cook for 3 minutes, stirring to flavor the spinach.

Photos of squeezing excess liquid from the spinach, and cooking it in a skillet by

5.  Combine the spinach mixture with the egg and cheese mixture and pour it into a prepared 9-inch baking dish.

spinach mixture poured into a baking dish. by

6.  Bake at 375 degrees F (190 C), for 15 to 17 minutes, until the edges and top are golden brown.  Remove from the oven and allow the quiche to cool for a few minutes before serving.  Then serve warm or at room temperature.   

Questions and Answers…

1.  Can We Make Quiche Ahead?

Yes, indeed.  You can make this crustless quiche ahead of time. It’s best to bake it, then reheat it when you’re ready to serve it. 

2.  Can We Freeze Quiche? 

Yes, you can freeze quiche as long as you bake it first.  Allow it to cool completely before freezing. Cover with aluminum foil and freeze.  Best to freeze for up to one month only, after that it will develop freezer burns.

3.  How To Reheat?

Remove frozen quiche from the freezer and allow it to sit on your counter for at least one hour before reheating it.  Reheat in your preheated oven at 350 degrees F (180C), and reheat for 10 minutes.

A forkful of the Crustless Spinach and Cheese Quiche by
Yield: 8 to 10 servings

Crustless Spinach and Cheese Quiche

A glass baking dish with a baked crustless quiche filled with spinach and cheese.

Our Crustless Spinach and Cheese Quiche is deliciously loaded with chopped spinach, eggs, grated Parmesan cheese along with shredded mozzarella and sharp cheddar cheese. Make ahead and reheat, this delicious tasting quiche is perfect to serve as breakfast or as a meatless meal on busy weekends.

Prep Time 10 minutes
Cook Time 16 minutes
Total Time 26 minutes


  • 1 (10-ounce) frozen chopped spinach - thawed
  • 1 Tbsp. extra virgin olive oil
  • 1/2 Tbsp. butter
  • 1 large onion - chopped
  • 5 eggs
  • 1 + 1/2 cups shredded mozzarella cheese
  • 1 cup shredded sharp cheddar cheese
  • 1/3 cup grated Parmesan cheese
  • 1/2 tsp. salt
  • 1/8 tsp. black pepper
  • Cooking oil spray


  1. Preheat oven to 375 degrees F. (190 C). Lightly spray a 9-inch baking pie dish. Set it aside.
  2. In a medium-size skillet, heat olive oil and butter on moderate heat, and add the chopped onion. Saute the onion for 3 to 5 minutes, until the onions are golden brown and caramelized.
  3. Add in the chopped spinach, and continue to cook the spinach with the onions for 3 minutes, stirring occasionally.
  4. In a mixing bowl, whisk together 5 eggs with salt, pepper. Then whisk in all three kinds of cheese. Finally, add the spinach and onion mixture to the egg mixture and whisk until well combined.
  5. Transfer to the prepared baking dish. Spread the mixture in an even layer.
  6. Bake on the center rack of the oven for 15 to 17 minutes, until the quiche is golden brown.
  7. Remove and allow to cool for about 5 minutes. Serve warm or at room temperature.


If frozen, remove quiche from the freezer and allow it to sit on your counter at least one hour before reheating it.  Reheat in the oven at 350 degrees F (180C) for 10 minutes, or until its heated through.

Nutrition Information:


8 to 10 servings

Serving Size:

1 serving

Amount Per Serving: Calories: 149Total Fat: 11gCarbohydrates: 3.6gProtein: 9.8g

Did you make this recipe?

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Crustless Spinach and Cheese Quiche by
Nutrition Facts
Serving size: 1 serving
Servings: 8 to 10 servings
Amount per serving 
% Daily Value*
Total Fat 11g14%
Saturated Fat 5.1g26%
Cholesterol 122mg41%
Sodium 193mg8%
Total Carbohydrate 3.6g1%
Dietary Fiber 1.2g4%
Total Sugars 1.2g 
Protein 9.8g 
Vitamin D 12mcg59%
Calcium 161mg12%
Iron 2mg9%
Potassium 276mg6%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calorie a day is used for general nutrition

That’s it friends!  If you try our crustless spinach and cheese quiche recipe, let us know and leave a comment! If you have any questions, ask away!

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Happy and Healthy Baking!  🙂

Thanks for stopping by!

 xo Anna and Liz

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Welcome! From Anna and Liz

We believe the kitchen is the center and the heart of the home. It is where we cook, eat, and unwind with family and friends, creating memorable traditions! Read more…

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  1. Hi. I tweaked the recipe, of course. I microwaved the spinach and used onion powder. I used some tofu (maybe a quarter of a square?) and three eggs. For cheese I used 1 and 1/2 cups cheddar, one cup cottage cheese, and the parmesan. Something in my changes caused it to need extra time cooking. I must have added at least 15 minutes, maybe 20. It’s very good (I ate half of it)!

    1. Good morning Martha! So glad to hear you tweaked the recipe and adapted some of the ingredients and it worked great! Have a great weekend! 🙂

    1. Thanks, Susan! My family requests my crustless quiche all the time. I love it for breakfast and my husband loves it chilled. ENJOY!!

  2. i am in fact making something similar for dinner tonight. it’s called busy person’s pie – no crust, with a tuna and corn eggy filling. Delish! yours looks so tasty.