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Spinach Mushroom Omelette

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4.95 from 53 votes
By Carine Claudepierre -
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This easy Spinach Mushroom Omelette is a delicious keto vegetarian breakfast recipe easy to whip in 10 minutes any day of the week. Plus, this omelette recipe has a dairy-free option!

Spinach Mushroom Omelette Keto omelette

I love French omelette for breakfast or a simple dinner and even more vegetarian omelette for a ketotarian breakfast.

A Fulfilling Vegetarian Omelette

But to make a fulfilling vegetarian omelette, you need to add two key components:

Spinach Mushroom Omelette Keto omelette

Are Mushrooms Keto-Friendly?

Absolutely yes! Mushrooms are high-protein vegetables and a great plant-based protein to add to your keto diet if you want to skip the meat.

A portion of 100 grams (3.5oz) of button mushrooms contains only 2 grams of net carbs and 3 grams of proteins.

Is Spinach Keto-friendly?

Yes, spinach is a low-carb keto-friendly vegetable with only 0.4 grams of net carbs per cup of packed spinach.

Therefore, a spinach and mushroom omelette is an ideal vegetarian keto breakfast, high in protein and fiber to keep you full for hours.

Spinach Mushroom Omelette Keto omelette

How To Make A Spinach And Mushrooms Omelette

Here are my tips to make a delicious mushroom spinach omelette.

Ingredients

Let’s have a look at the ingredients you need:

  • Large eggs
  • Mushrooms – you can use cremini mushrooms or button mushrooms.
  • Baby spinach leaves or frozen spinach, you don’t need to thaw the spinach before.
  • Salt
  • Pepper
  • Olive oil
  • Butter
  • Garlic cloves
  • Shredded mozzarella or cheddar

Beating Eggs

First, beat the eggs in a mixing bowl and whisk vigorously with salt and pepper.

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Set aside while cooking the vegetables.

Spinach Mushroom Omelette Keto omelette

Stir-Fry The Vegetables

Next, in a non-stick pan, warm and melt butter. Stir in the finely sliced mushrooms and stir fry with garlic until fragrant and roasted on all sides. Add salt and pepper if desired.

Push the cooked mushrooms on one side of the pan and add the baby spinach leaves. Stir and cook the spinach until wilted – about 1 minute.

If you are using frozen spinach, it will release some water in the pan and take longer to cook. Cook until all liquid is evaporated.

How to make Spinach Mushroom Omelette

Cooking The Eggs

Set aside the cooked vegetables on a plate. Cover the plate with foil to keep the omelette filling hot and warm.

Warm some olive oil over medium heat in the same pan. If you used frozen spinach, I recommend wiping the pan with absorbent paper to remove all the water released into the pan by defrosting the spinach.

Cook the beaten egg mixture in the hot oiled pan, tilting it to spread the eggs evenly.

Lift edges to let the uncooked eggs run under.

Spinach Mushroom Omelette Keto omelette

Fill The Omelette With The Mushroom Mixture

When the sides of the omelette are cooked and crisp, add half shredded cheese on half of the omelette, then add spinach and mushrooms.

Top up with the remaining cheese.

Lift the omelette by sliding a spatula under the other side of the omelette,

Fold over the filling ingredients and keep cooking on low heat until the cheese has melted.

Serve the spinach omelette immediately, with some chopped fresh parsley, salt and pepper, and extra chili flakes for a spicy touch.

Add-ons

You can tweak this keto omelette recipe, adding some of the ingredients below.

For example, you can add mushrooms with onion or red pepper.

Cook the onion and mushrooms until golden brown, then cook and stir red bell pepper and spinach.

How To Make The Omelette Fluffy

To make a fluffier omelette, whisk the eggs with 2 teaspoons of heavy cream, almond milk, or even cold water.

Frequently Asked Questions

Can I Use Frozen Spinach?

Yes, you can use frozen spinach in this recipe.

You don’t have to thaw the vegetables before using them. Cook the spinach longer until all the water evaporates.

Can I Make Dairy-free Omelette?

Yes, you can skip the cheese in the recipe. For a cheesy dairy-free flavor, you can add a pinch of nutritional yeast to your beaten eggs.

Can I Freeze The Omelette?

Yes, you can freeze the cooked omelette in an airtight container.

Thaw the omelette in the fridge the day before and preferably rewarm in an oiled saucepan, with a lid on top to bring back some moisture.

I don’t recommend rewarming the omelette in the microwave. The eggs become hard, dry, and chewy.

Spinach Mushroom Omelette Keto omelette

Can I Cook Omelette In The Air Fryer?

You can air fry omelette in a small air-fryer-safe pan. The result is closer to an egg-bake than an omelette, but it creates puffy, fluffy eggs.

Air fry the beaten eggs with cooked vegetables at 350°F (180°C) for 6-8 minutes or until set in the center.

Spinach Mushroom Omelette Keto omelette

More Keto Egg Breakfast Ideas

Below I listed some more egg breakfast recipes to serve as a savory breakfast on your keto diet.

Have you made this mushroom omelette with spinach? Share a comment or review below to connect with me!

XOXO Carine

Recipe Card

Spinach Mushroom Omelette Keto omelette

Spinach Mushroom Omelette

4.9gNet Carbs
4.95 from 53 votes
An easy cheesy Spinach Mushroom Omelette, perfect as a high-protein vegetarian low-carb breakfast.
Prep Time: 10 mins
Cook Time: 5 mins
Total Time: 15 mins
Yield: 1 omelette
Serving Size: 1 omelette

Recipe Macros

Net Carbs 4.9g
Fat 32.4g
Protein 22.9g
Calories 402.2kcal

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4.95 from 53 votes
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Instructions

  • Crack and beat the eggs in a small bowl. Season with salt, pepper and set aside in the fridge while cooking the vegetables.
  • Heat a non-stick skillet over medium heat, warm butter. When hot, add mushrooms slices, crushed garlic a pinch of salt and pepper.
  • Stir fry for about 1-2 minutes, until the mushrooms are roasted and fragrant. Stir in spinach and keep cooking until wilted. Take off the skillet and set it aside on a plate. Cover with a piece of foil to keep warm.
  • Add olive oil, warm, and spread it evenly into the pan, tilting the pan in a rotating motion.
  • Reduce to medium-low heat, add beaten eggs and tilt the pan again to spread the egg mixture all over the pan.
  • When the sides of the omelette are set and start to dry out, lift them with a spatula to let the uncooked eggs from the middle run under and cook.
  • Once the middle of the omelette starts to set, sprinkle the shredded mozzarella on one half of the omelette and top with cooked spinach and mushrooms.
  • Fold the omelette in half, reduce to low heat and keep cooking until cheese is melted.
  • Gently slide on a plate and adjust seasoning, adding more salt, pepper, fresh parsley, or a pinch of chili flakes to taste.
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Nutrition Facts
Spinach Mushroom Omelette
Amount Per Serving (1 omelette)
Calories 402.2 Calories from Fat 292
% Daily Value*
Fat 32.4g50%
Saturated Fat 13.1g82%
Trans Fat 0.4g
Polyunsaturated Fat 3.5g
Monounsaturated Fat 13.4g
Cholesterol 415.6mg139%
Sodium 1001.1mg44%
Potassium 648.5mg19%
Carbohydrates 6.6g2%
Fiber 1.7g7%
Sugar 2.7g3%
Protein 22.9g46%
Net Carbs 4.9g
Vitamin A 3822.2IU76%
Vitamin B12 1.6µg27%
Vitamin C 11.4mg14%
Vitamin D 2.4µg16%
Calcium 238.6mg24%
Iron 3.3mg18%
Magnesium 51.1mg13%
Zinc 2.8mg19%
* Percent Daily Values are based on a 2000 calorie diet.
Spinach Mushroom
Carine Claudepierre

About The Author

Carine Claudepierre

Hi, I'm Carine, the food blogger, author, recipe developer, 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 here.

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

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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.

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