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Easy Keto Crustless Spinach Quiche Recipe

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Hey there! So, imagine this: a mouthwatering Spinach Quiche Recipe that’s not only delicious but also keto-friendly, and guess what? No crust needed! I’m talking about a flavorful, cheesy creation packed with nutritious spinach and all sorts of tasty keto-approved ingredients. It’s perfect for breakfast, brunch, or even a quick dinner when you’re on your keto journey. Trust me, once you try this Easy Keto Crustless Spinach Quiche Recipe, you’ll be hooked! 

This image shows a slice of Easy Keto Crustless Spinach Quiche on a white plate in the foreground. In the background you can see a baking dish full of this quiche with a slice taken out. There is a black and silver spatula sticking out of the baking dish.

It’s easy to make, requires a few simple ingredients, absolutely delicious, and fits perfectly into your keto lifestyle. So, what are you waiting for? Let’s dive into this keto-friendly recipe together and savor every satisfying bite! Oh, and did I mention it’s crustless?

This Easy Spinach Crustless Quiche is:

  • Easy low carb
  • Great for meal prep
  • Great for a Brunch recipe
  • Cheesy and Savory
  • Packed with Protein
  • Great for Breakfast, Lunch, or Dinner

After completely cooling, the quiche sets. You can cut out a section for yourself and dive in!

​What is a Crustless Quiche

A crustless quiche is basically like a regular quiche but without the pastry crust. So, instead of having that flaky, buttery crust on the bottom and around the edges, you just have the yummy filling baked in a dish.

This is a image that shows a closeup shot of Spinach Crustless Quiche slice on a white plate. The slice is in the foreground. The slice is vibrant with colors of green from the Spinach and Yellowish orange from the Cheddar cheese. In the background you can see a baking dish that is out of focus on the back left hand side.

It’s a great option if you’re looking to cut back on carbs on a keto diet or if you just don’t feel like dealing with making a crust. Plus, this low-carb quiche is super versatile—you can fill it with all kinds of tasty ingredients like veggies, cheese, meat, or whatever you like!

My mom has always made Quiches, whether it was broccoli and cheese or Spinach and cheese. I grew up eating it and I love it. The beauty of this Crustless Quiche recipe is you can add many other ingredients to suit your taste and nutritional needs. I am going to share the basic foundation which only requires, Cheddar cheese, Eggs, Spinach, Milk, Salt, Black Pepper

Crustless Quiche vs. Frittata

I am not 100% sure if there is such a term as a Crustless Quiche. There are a few recipes out there but usually when a Quiche doesn’t have a crust, it is considered a Frittata, well sort of. There are some similarities and differences. Let me explain.

The main difference between a crustless quiche and a frittata is that a quiche typically has a creamy custard-like filling, while a frittata has a denser texture more akin to an omelet.

This image is a overhead shot of a slice of Crustless Spinach and Cheese Quiche sitting on a white plate. In the background you can see the rest of this dish in a clear baking casserole dish.

With a crustless quiche, you’re still getting that creamy, almost pudding-like texture because it’s typically made with eggs, heavy whipping cream (or whole milk), and other fillings baked together. It’s like a savory pie without the crust. 

On the other hand, a frittata is more like a thick, fluffy pancake loaded with all kinds of ingredients mixed right into the eggs. It’s cooked on the stove and often finished under the broiler, making it quick and easy to whip up.

So, while they’re both delicious ways to enjoy eggs and various fillings, the texture and cooking method are what set them apart.

What Does Crustless Spinach Quiche Taste Like

A crustless spinach quiche tastes like a savory, creamy delight. You’ve got the earthy flavor of spinach mixing in with the richness of eggs and cheese.

Depending on what else you throw in there, like onions, garlic, or maybe some herbs, you might get a little extra sweetness or zing. But overall, it’s just a smooth, creamy texture that’s super satisfying. And since there’s no crust, all those yummy flavors stand out.

It’s a light and wholesome meal that’s perfect anytime!

This image is a closeup of a slice of Baked Crustless Spinach Quiche. The slice of Quiche is sitting on a a white plate that is out of focus. The only thing in focus is the front edge of the quiche which is a beautiful vibrant color of green spinach and cheddar cheese mixture.

Crustless Quiche Ingredients

Here’s What You’ll Need to make this Crustless Quiche recipe

  • Spinach-For this recipe, I am using frozen chopped spinach. If you prefer fresh spinach, you can use raw baby spinach but make sure to chop it up first before using it.
  • Eggs and Whole milk- this creates the base for the custard for any quiche. 
  • Sharp Cheddar Cheese– Use block cheddar cheese and not pre-shredded. The pre-shredded is coated and will not taste as good as cheese that you shred yourself.
  • Olive Oil– for sautéing the spinach
  • Salt
  • Black Pepper

See the recipe card at the end of the post for quantities

​Equipment You’ll Need

  • Baking Dish– I use this particular 10 x 8 Pyrex baking dish (Casserole dish) or you can use a Pie Plate (Pie dish).
  • Cast Iron Skillet or Frying pan- I love cooking in a cast iron skillet. The one I have is very old that I found at a yard sale. This brand isn’t even in business anymore. I have several other Lodge Cast Iron pans just like this one here.
  • Large Bowl– My favorite brand to use is the OXO Large Mixing Bowls. They are a high-quality product at reasonable prices. I use a lot of their items from their brand as I find it is high quality. 
  • Cheese Grater– I recommend this viral cheese grater that everyone online is talking about. I have one similar to it but I prefer this one as it is smaller and comes in many colors.  

Check out this post here is a list of Kitchen Essentials tools that I recommend.

How to Make A Crustless Spinach Quiche

Step-by-step instructions

Step 1

Preheat oven to 350 degrees Fahrenheit and lightly grease a baking dish or pie pan.

This is a image of a person using avocado spray to coat a baking dish.

Step 2

Lay out and thaw the frozen spinach. Once it is thawed, place it in a colander to drain it. If you are using fresh spinach, wash it, then chop it up. 

Step 3

Place the spinach in a cast iron skillet and sauté over medium heat. This will help evaporate some of the excess moisture in the Spinach. Allow the spinach to cool.

Step 4

To get 2 cups of shredded cheese, shred the block of Cheddar cheese and set aside.

Step 5

In a mixing bowl, add the large eggs, whole milk, salt, and black pepper. Whisk together until the yolks are broken up. Add in the Spinach and Cheddar cheese and mix until well-blended.

This is a image showing a light blue colored bowl full of beaten eggs that will be used to make a quiche.
This image shows a light blue colored bowl that has a mixture of beaten eggs, spices, and milk that is being poured into a red mixing bowl that has Spinach in it. There is a whisk sticking on the edge of the bowl.
This image shows a black paper plate that is full of shredded cheddar cheese. The cheese is being poured into a red bowl that has a egg mixture and Spinach in it. There is a whisk sticking in the bowl ready to mix this mixture together to make a Crustless Spinach Quiche.

Step 6

Next, pour the egg mixture into the prepped baking dish or pie pan.

This image shows a red bowl that is full of a Spinach quiche mixture. The mixture is being poured into a glass baking dish such as a Pyrex dish.

Step 7

Bake in the oven for in the preheated oven for about 40 to 50 minutes until mixture has set. 

Step 8

Remove from the oven and let the dish cool down before serving. 

This is a image of a silver and black spatula cutting a slice of Spinach quiche out of a clear backing dish.

Variations

My mom has always made Quiches, whether it was broccoli and cheese or Spinach and cheese. I grew up eating it and I love it. The beauty of this Crustless Quiche recipe is you can add many other ingredients to suit your taste and nutritional needs. 

​Other Variations include but are not limited to:

  • Cheese-You can mix and match cheese. I like sharp Cheddar but feel free to add in cream cheese for a creamier base, gruyere cheese for its richness, or Swiss cheese for its nutty and sweeter flavor profile. 
  • Vegetables-The beauty of this dish is you start with the base of eggs, milk, and cheese. Then you add what you like. Throw in some green onions. Feel free to add other variations of vegetables if you do not like Spinach. 
  • Protein-There are many different protein options from leftover Ham, to bacon, to Sausage. All make great choices.
  • Spices– add in cayenne for some heat or garlic to up the savory profile, or rosemary. 

Here is a list of optional recipe combinations:

  • Crustless Zucchini Quiche
  • Crustless Ham and Cheese Quiche
  • Crustless Mushroom Spinach Quiche
  • Spinach Feta Crustless Quiche
  • Broccoli Cheese Crustless Quiche
  • Salmon Crustless Quiche
  • Crustless Sausage Quiche
  • Bacon and Cheese Crustless Quiche
  • Crustless Cottage Cheese Quiche

Which one is your favorite? Keep an eye out for these future recipes. 

Keto Friendly Sides to serve Crustless Spinach Quiche with

Non-Keto Sides

​Storage Tips

​This crustless quiche can be stored in an airtight container in the refrigerator for up to 3 to 4 days. To eat, simply remove a slice and reheat. 

For longer-term storage, Crustless Quiche can be frozen. Make sure to place it in a freezer-safe container before freezing. 

FAQ’s

Can you make crustless quiche ahead of time?

Yes, you can prepare a crustless quiche ahead of time. It’s a great option for meal prep or entertaining. Simply bake the quiche as directed, let it cool completely, then refrigerate it in an airtight container. When ready to serve, you can reheat individual slices in the microwave or oven.

Can I freeze a crustless spinach quiche?

Absolutely! Crustless quiche freezes well. Once it’s cooled completely, wrap it tightly in plastic wrap or aluminum foil, or place it in an airtight container. Frozen quiche can be reheated directly from frozen in the oven or microwave. Just be sure to adjust the cooking time accordingly.

What can I use instead of milk to make this Spinach Crustless Quiche recipe?

You can substitute with heavy cream, half-and-half, yogurt, or sour cream. If are looking for a non-dairy option, you can substitute almond milk or coconut milk in its place.

What if I want a crust but still need this recipe to be keto-friendly?

If you want to make a crust, a good option is to make one out of almond flour or coconut flour.

How do I prevent a crustless spinach quiche from becoming watery?

The secret to preventing the quiche from becoming watery is to sautee the vegetables before mixing the ingredients. Also, make sure to drain any excess moisture from any ingredients.

Can I use fresh spinach instead of frozen?

Yes, you can use fresh spinach instead of frozen. Just chop the spinach up and saute it before using.

Easy Keto Crustless Spinach Quiche

This image is a up-close shot of Keto Crustless Quiche that is sitting on a white plate. The front of the quiche is in focus while the back of the plate is out of focus. You can see the texture of the dish and the vibrant colors of the green spinach and Yellowish-orange Cheddar cheese.

Try our Easy Keto Crustless Spinach Quiche! Packed with spinach and cheesy goodness, this dish is simple to make and perfect for meal prep. Just mix eggs, spinach, milk, cheese, and a few seasonings, then bake until it's golden and bubbly. It's satisfying, flavorful, and keto-friendly! Enjoy it hot or cold for a delicious start to your day.

Prep Time 15 minutes
Cook Time 40 minutes
Total Time 55 minutes

Ingredients

  • 6 large eggs
  • 10 oz. package for frozen chopped spinach (You can substitute fresh Spinach, see notes for details)
  • 1.5 cups of whole milk
  • 2 cups of Sharp cheddar cheese. (see notes)
  • 1/2 teaspoon of salt
  • 1/2 teaspoon of black pepper

Instructions

    1. Preheat oven to 350 degrees Fahrenheit and lightly grease a baking dish or pie pan.

    2. Thaw the frozen spinach. Once it is thawed, place it in a colander to drain it. If you are using fresh spinach, wash it, then chop it up. 

    3. Place the spinach in a cast iron skillet and sauté over medium heat. This will help evaporate some of the excess moisture in the Spinach. Allow the spinach to cool.

    4. Shred the block of Cheddar cheese and set aside.

    5. In a mixing bowl, add the large eggs, whole milk, salt, and black pepper. Whisk together until the yolks are broken up. Add in the Spinach and Cheddar cheese and mix until well-blended.

    6. Next, pour the egg mixture into the prepped baking dish or pie pan.

    7. Bake in the oven for in the preheated oven for about 40 to 50 minutes until mixture has set. 

    8. Remove from the oven and let the dish cool down before serving. 

Notes

  • For this recipe, I am using frozen chopped spinach. If you prefer fresh spinach, you can use raw baby spinach but make sure to chop it up first before using it.
  • For the cheese, it is best to use block cheese and then shred it yourself. It tastes much better. If you do not have it, you can use shredded cheese in the bag.

Nutrition Information:

Yield:

6

Serving Size:

1

Amount Per Serving: Calories: 263Total Fat: 19gSaturated Fat: 10gTrans Fat: 0gUnsaturated Fat: 7gCholesterol: 227mgSodium: 541mgCarbohydrates: 5gFiber: 1gSugar: 3gProtein: 18g

Did you make this recipe?

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Barbara Williams

Monday 1st of April 2024

Looks good.

Ronnie Williams

Tuesday 2nd of April 2024

Thanks so much!

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