This post may contain affiliate links. Please read our disclosure.

This easy Crustless Low Carb Quiche is light, fluffy, and absolutely delicious! You only need 7 ingredients to whip up this recipe for the perfect breakfast, brunch, or week of meal prep.

Low carb quiche in baking pan with one slice removed to a plate with a fork

Most people think that quiche is a difficult, time-consuming dish to prepare. Its delicious taste and light, airy texture make it seem so impressive.

But in fact, making this low carb quiche couldn’t be easier! The filling comes together in under 10 minutes, then you simply bake and allow it to cool before serving. It’s a breeze.

Plus, quiche freezes incredibly well, so you can bake up this dish on Sunday and have it ready to enjoy for the entire week!

So what’s the secret to the perfect quiche? It’s simple: getting the eggs-to-dairy ratio just right!

Don’t worry, we’ll show you how it’s done. And from there, you can follow our suggestions for filling ingredients, or you can get creative and come up with your own.

When the texture of your quiche is just right, you really can’t go wrong!

How to make a crustless low carb quiche 

Ready to see just how easy it is to prepare this delicious and healthy breakfast?

Step 1: Preheat your oven to 375F (190°C). Grease a 9 inch (23 cm) tart pan with butter and set aside.

Step 2: Cook the bacon in a pan until it’s slightly crispy.

Step 3: Chop the bacon, red onion, and green onion.

Ingredients for the keto quiche Lorraine in separate bowls, as seen from above

Step 4: Combine the milk and eggs in a large mixing bowl. Whisk together well.

Mixing the liquid ingredients together in a large glass bowl

Step 5: Add the remaining ingredients and seasoning to the egg and milk mixture. Stir to combine.

Quiche fillings added to the bowl with the wet ingredients already mixed

Step 6: Pour the mixture into the prepared tart pan. If necessary, stir to make sure the fillings are evenly distributed throughout the quiche batter.

Quiche mixture in a tart pan before baking

Step 7: Bake the quiche for 45 – 50 minutes until golden and set.

Step 8: Remove from the oven and allow to cool for at least 30 minutes before slicing and serving.

Now your low carb quiche is ready to enjoy!

This recipe turns out perfectly every time. Impress your friends at your next brunch, or simply enjoy this tasty, nutritious dish yourself!

Baked and cooled quiche ready to be served, as seen from above

Getting the perfect texture 

The key to the perfect light and airy quiche texture is getting the eggs-to-dairy ratio just right. It’s the difference between a stiff, dry quiche versus one that is perfectly delicious and fluffy!

Thankfully, the ratio is easy to remember. You simply need 2 eggs for every 1 cup of dairy. That’s it!

This recipe uses 6 eggs, so we need 3 cups of dairy. We split this up between 1 1/2 cups of milk and 1 1/2 cups of cheese.

That’s all there is to it! Just be sure to keep this ratio in mind if you start experimenting with your own ingredients, especially if you decide to add more cheese. You’ll have to adjust the amount of milk used to ensure the ratio is still balanced.

Close-up of baked and golden quiche

Get creative with your ingredients!

It’s so much fun to play around with different ingredients for this dish. Honestly, it’s hard to go wrong! A good rule of thumb: if you’ve seen it in an omelet, it will probably be delicious in a quiche.

The bacon and onion in this recipe are the ingredients for a classic quiche Lorraine. Another popular variation is the spinach and feta quiche, which is equally delicious.

But there are literally thousands of other options out there!

Whether you’re clearing out your refrigerator or just want to try something new, here are some ideas for more fillings to try:

Vegetables:

  • Mushrooms
  • Bell peppers
  • Kale or spinach (these work well with some feta cheese too!)
  • Cooked broccoli or cauliflower

Cheeses and meats:

  • Any light cheese
  • Sliced sausages
  • Cold meats

Big flavor:

  • Jalapeños
  • Freshly diced garlic cloves
  • Pickled asparagus and artichoke

The ingredient combinations are endless, so go ahead and get creative!

A slice of quiche served on a plate with a fork as seen from the side

Storage

Did you know that crustless quiche can be made ahead?

In fact, this dish freezes really well for when you need to whip up something impressive in a flash!

To freeze a quiche, cook it for 3/4 of the total time (so roughly 33 – 37 minutes), remove from the oven, and allow it to cool to room temperature. Make sure it’s fully cooled so you don’t end up with condensation, which will give you a soggy quiche.

Once fully cooled, wrap the quiche in plastic or place it in an airtight container and freeze. You can keep it in the tart pan or remove and set on a plate.

Before serving, remove from the freezer and allow it to sit at room temperature for a few hours. Then simply bake at 350F (180°C) for 15 minutes and serve!

If you have leftovers of fully-cooked quiche, store in an airtight container in the refrigerator for up to 5 days or in the freezer for several months.

Other healthy breakfast recipes

Can you ever have too many delicious and nutritious breakfast recipes? I certainly don’t think so! Here are a few of my favorites that I know you’ll love:

You can also check out this roundup I created of 10 low-carb breakfast ideas for diabetics for even more great breakfast and brunch inspiration!

When you’ve tried this recipe, please don’t forget to let me know how you liked it and rate the recipe in the comments below!

Crustless Low-carb Quiche

4.44 from 65 votes
Leave a review
This easy Crustless Low Carb Quiche is light, fluffy, and absolutely delicious! You only need 7 ingredients to whip up this recipe for the perfect breakfast, brunch, or week of meal prep.
Prep Time: 10 minutes
Cook Time: 45 minutes
Cooling time: 30 minutes
Total Time: 1 hour 25 minutes
Servings: 6 servings

Ingredients 

  • large eggs
  • 1 1/2 cup  milk
  • 1 1/2 cup  grated cheese, (cheddar cheese, Swiss cheese, or mozzarella)
  • 1 lbs. bacon, (cooked)
  • 1 red onion, (chopped)
  • Handful of fresh spring onions, (chopped)
  • 1 teaspoon ground nutmeg
  • Salt & pepper to taste

Instructions

  • Preheat your oven to 375F (190°C). Grease a 9 inch (23 cm) tart pan with butter and set aside.
  • Cook the bacon in a pan until it’s slightly crispy.
  • Chop the bacon, red onion, and green onion.
  • Combine the milk and eggs in a large mixing bowl. Whisk together well.
  • Add the remaining ingredients and seasoning to the egg and milk mixture. Stir to combine.
  • Pour the mixture into the prepared tart pan. If necessary, stir to make sure the fillings are evenly distributed throughout the quiche batter.
  • Bake the quiche for 45 – 50 minutes until golden and set.
  • Remove from the oven and allow to cool for at least 30 minutes before slicing and serving.

Notes

This recipe is for 6 servings of quiche.
If you use regular bacon and cheese, this recipe is quite high in sodium. Consider using low-sodium bacon and low-sodium cheese if you need to watch your sodium intake. 
Feel free to experiment with fillings, just be sure to maintain the 2:1 eggs-to-dairy ratio!
To pre-bake the quiche to serve at a later date, cook it for 3/4 of the total time, then remove from the oven and allow to cool to room temperature. Wrap in plastic or place in an airtight container, then freeze. 
To serve, remove from the freezer for a few hours and then bake at 350F (180C) for 15 minutes. 
Leftovers can be stored in an airtight container in the refrigerator for up to 5 days or in the freezer for several months.

Nutrition Info Per Serving

Nutrition Facts
Crustless Low-carb Quiche
Amount per Serving
Calories
267
% Daily Value*
Fat
 
18
g
28
%
Saturated Fat
 
8.1
g
41
%
Trans Fat
 
0
g
Polyunsaturated Fat
 
0.5
g
Monounsaturated Fat
 
2
g
Cholesterol
 
204.6
mg
68
%
Sodium
 
857.9
mg
36
%
Potassium
 
169
mg
5
%
Carbohydrates
 
6.9
g
2
%
Fiber
 
1.6
g
6
%
Sugar
 
3.1
g
3
%
Protein
 
21.5
g
43
%
Vitamin A
 
390
IU
8
%
Vitamin C
 
1.8
mg
2
%
Calcium
 
118
mg
12
%
Iron
 
1.2
mg
7
%
Net carbs
 
5.3
g
* Percent Daily Values are based on a 2000 calorie diet.