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Keto Breakfast Sandwich only 3.7g Net Carbs

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4.98 from 255 votes
By Carine Claudepierre - - 6 Comments

A Keto Breakfast Sandwich made with low-carb bread slices toasted in butter and filled with delicious cheddar cheese, bacon, egg, and spinach.

Bonus, this keto-friendly breakfast sandwich is also gluten-free!

Keto Breakfast sandwich recipe

How To Make A Keto Breakfast Sandwich

It’s very easy to make a low-carb breakfast sandwich at home in a sandwich press maker.

Step 1: choose your keto bread

First, choose the keto bread recipe you want to use. You have a few options based on the time you want to spend in the kitchen and your food allergies.

All homemade keto bread loaves are made with keto flour, including almond flour, coconut flour, or sunflower seed flour for a nut-free option.

Pick the recipe that matches your preference below, or buy store-bought keto bread at the store.

Microwave bread

For a quick and easy bread, make a 90-second keto bread following one of the recipes below:

Egg-free keto bread loaf

These keto bread loaf recipes are also vegan keto-approved as they are egg-free and dairy-free. They also freeze very well to meal prep some keto sandwiches.

Everyday keto bread loaf

If you don’t mind the eggs in a keto bread loaf, try some of the keto bread loaf recipes below.

They all slice perfectly to make a delicious breakfast sandwich low-carb recipe.

Step 2: sandwich filling

Next, choose the keto sandwich filling you want to add to your breakfast sandwich.

Bacon and egg Breakfast sandwich

As a general rule, to make a fulfilling breakfast  keto sandwich, you must pick 1 or 2:

  • Keto protein – the best options are:
    • slice of cheese
    • Ham
    • Chorizo
    • Bacon
    • Chicken or turkey
    • Mushrooms
    • Firm tofu
    • Tempeh
  • Keto-friendly vegetables – the best low-carb vegetables for sandwiches are:
    • Baby spinach leaves
    • Lettuce
    • Gherkins or dill pickles
    • Olives
    • Avocado
  • Keto-approved fat
    • Butter or olive oil or coconut oil – perfect to spread on bread and toast the sandwich.
    • Bacon
    • Cheese
    • Avocado

Step 3: fill and toast

Now that you selected all the ingredients for your low-carb sandwich, it is super easy to assemble.

First, spread butter on the outside of both slices of keto bread – these sides are going to be toasted in a skillet or in the sandwich press. Set aside.

To make a bacon and egg sandwich, as seen in my picture, you need:

  • Keto bread
  • Bacon
  • Egg
  • Cheddar cheese
  • Mayonnaise or hot sauce or sauce you love
  • Baby spinach leaves
  • Salt and pepper
  • Butter

Cook the bacon in the skillet until fried and crispy on both sides. Set it aside on a plate.

Next, cook the egg in the skillet in the bacon grease until the white egg is crispy.

Cover with a lid, turn the skillet over medium heat, and set aside until the egg yolk is half cooked. This is optional, but it sets the egg yolk slightly and makes it easier to hold in a sandwich.

Next, top up the first bread slice with a layer of cheese, followed by meat, vegetable, and cheese, and repeat to add more if desired.

Keto Breakfast sandwich

Allergy Swaps

To make a vegetarian sandwich, simply add some of these ingredients :

  • Protein: fried egg or, if vegan, use fried mushrooms or firm tofu slices.
  • Fat: cheese or if vegan keto, use vegan cheese or avocado.
  • Keto vegetable – spinach, cucumber, olives, tomatoes.
low carb Breakfast sandwich

Did you enjoy this easy keto sandwich bread recipe? Share a comment or review below, and let me know which bread you used to make it!

Keto Breakfast sandwich recipe

Keto Breakfast Sandwich

3.7gNet Carbs
An easy keto breakfast sandwich for a low-carb breakfast on the go.
Prep: 10 mins
Cook: 5 mins
Total: 15 mins
Yield: 1 sandwich
Serving Size: 1 sandwich


Net Carbs 3.7g
Fat 25.8g
Protein 14.1g
Calories 339.2kcal
4.98 from 255 votes
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Want My Kitchen Equipment?



  • First, prepare your keto bread recipe following one of my keto bread recipes on the blog.
  • Lay 2 slices of keto bread on a plate, spread half the butter on each outside part of the bread slices. Set aside on the plate, buttered side face down.
  • Spread half the mayonnaise on each bread slice facing you. Set aside.
  • Meanwhile, fry the bacon slices over medium heat in a skillet. When cooked and crispy, set aside on a plate.
  • Cook the egg in the bacon fat until crispy. Cover with a lid and cook 1-2 minutes to slightly set the center of the egg – this is optional, but the egg yolk is less runny and holds better in the sandwich with this technique.
  • Warm the sandwich press and meanwhile assemble the sandwich.
  • Lay half a cheese slice, crispy bacon, fried egg, spinach leaves, and the remaining cheese slice. Top up with the second slice of bread, butter side out.
  • Place the sandwich in the press or on the skillet over medium heat and cook on both sides until the cheese is melted and the bread golden brown.
  • Serve immediately.
My Recipe Notes

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Nutrition Facts
Keto Breakfast Sandwich
Amount Per Serving (1 sandwich)
Calories 339.2 Calories from Fat 232
% Daily Value*
Fat 25.8g40%
Saturated Fat 4.5g28%
Trans Fat 0.1g
Polyunsaturated Fat 2.4g
Monounsaturated Fat 5.7g
Cholesterol 200.5mg67%
Sodium 222.6mg10%
Potassium 154.4mg4%
Carbohydrates 14g5%
Fiber 10.3g43%
Sugar 0.2g0%
Protein 14.1g28%
Net Carbs 3.7g
Vitamin A 981.4IU20%
Vitamin B12 0.6µg10%
Vitamin C 2.1mg3%
Vitamin D 1.1µg7%
Calcium 36.5mg4%
Iron 1.2mg7%
Magnesium 14.6mg4%
Zinc 1mg7%
* Percent Daily Values are based on a 2000 calorie diet.
Keto Breakfast Sandwich Bacon and egg

Carine Claudepierre

About The Author

Carine Claudepierre

Hi, I'm Carine, the food blogger, author, recipe developer, published author of a cookbook, and founder of Sweet As Honey.

I'm passionate about sharing easy, tasty recipes that are both delicious and healthy

Cooking and Baking is my true passion. In fact, I only share a small portion of my recipes on Sweetashoney. Most of them are eaten by my husband and my two kids before I have time to take any pictures!

Browse all my recipes with my Recipe Index.

I hope that you too find the recipes you love on Sweetashoney!

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    6 Thoughts On Keto Breakfast Sandwich only 3.7g Net Carbs
  1. I would like to know which of bread recipes is you favorite for flavor and for sandwiches. I don’t care about time. I just want something good.


The recipes, instructions, and articles on this website should not be taken or used as medical advice. You must consult with your doctor before starting on a keto or low-carb diet. The nutritional data provided on Sweetashoney is to be used as indicative only. The nutrition data is calculated using WP Recipe Maker. Net Carbs is calculated by removing the fiber and some sweeteners from the total Carbohydrates. As an example, a recipe with 10 grams of Carbs per 100 grams that contains 3 grams of erythritol and 5 grams of fiber will have a net carbs content of 2 grams. Some sweeteners are excluded because they are not metabolized. You should always calculate the nutritional data yourself instead of relying on Sweetashoney's data. Sweetashoney and its recipes and articles are not intended to cure, prevent, diagnose, or treat any disease. Sweetashoney cannot be liable for adverse reactions or any other outcome resulting from the use of recipes or advice found on the Website.