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    Home » Recipes

    Spinach Mushroom Omelette With Feta Cheese (Keto)

    Published: Mar 10, 2021 · Modified: Jun 19, 2022 by Jeri Walker · This post may contain affiliate links · 15 Comments

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    Spinach and mushroom omelette with feta cheese served on a white plate with spinach salad.

    This super-easy Spinach and Mushroom Omelette with Feta Cheese is loved by everyone who tries it! It's a keto-friendly recipe and a great low-carb breakfast idea. Start off your day with this filling, healthy, nutritious omelette; a great way to get a hearty breakfast on the table in less than 15 minutes! If you are looking for an easy breakfast recipe that tastes great and is good for you, this one is it!

    PIN the recipe to try it later!

    A spinach omelette on a white plate with a side of spinach salad. this …

    This is a very simple recipe for a spinach and mushroom omelette with feta cheese. We love to eat this for breakfast but you can also have it for lunch or dinner. I really love the addition of feta cheese, it adds a nice touch of saltiness.

    This dish is perfect for those busy mornings when you need to get to work or school and don't have a lot of time to spend in the kitchen. It is quick to make AND healthy; my kind of recipe!

    This omelette (or omelet, as it is also known), is approved for the keto diet and is also gluten-free.

    For another easy breakfast recipe, check out this Oven-Baked Omelet recipe, or try a Keto Pumpkin Smoothie.

    Jump to:
    • ❤️ Why you will love this spinach and mushroom omelette
    • ❓ Is a spinach and feta omelette healthy?
    • ❓ How many carbs are in a spinach and feta omelette?
    • 🥚 Ingredient notes and substitutions
    • 🍳 How to make a spinach and mushroom omelette with feta cheese
    • 💭 Top tips
    • 🌡️ Storage
    • ♨️ How to reheat an omelette
    • 🍳 What is the best pan for making omelettes?
    • 🍄 Do you need to cook the vegetables first?
    • 📖 Variations
    • 🥘 1-egg omelette calories
    • 🥘 2-egg omelette calories
    • 🥘 3-egg omelette calories
    • 🥗 What to serve with spinach mushroom omelette with feta
    • 📋 Recipe
    • 📋 More Recipes
    • 💬 Comments

    ❤️ Why you will love this spinach and mushroom omelette

    • Healthy
    • Easy
    • Fast
    • Delicious
    • Perfect any time of the day

    ❓ Is a spinach and feta omelette healthy?

    Yes! In fact, this omelette provides a ton of protein, vitamins, minerals, and calcium.

    • Whole eggs contain good fats, which provide energy to the body. 
    • Spinach is a great source of potassium, magnesium, and powerful antioxidants.
    • Mushrooms are a low-calorie source of fiber, protein, and antioxidants, and they may also lower the risk of developing serious health conditions like Alzheimer's, heart disease, cancer, and diabetes.
    • Feta cheese is a good source of calcium, vitamin B6, and protein.

    ❓ How many carbs are in a spinach and feta omelette?

    There are about 6.7 net carbs in this spinach mushroom omelette, which makes it a great choice if you are on the keto diet.

    🥚 Ingredient notes and substitutions

    Ingredients for the spinach omelette measured out and placed on a wooden table.
    • Whole eggs. I used whole organic eggs. You could also use just egg whites for an egg white omelette, or use a combination of egg whites and whole eggs.
    • Fresh mushrooms, chopped. I used fresh mushrooms, but you could also use canned mushrooms.
    • Red onion, chopped. I used red onion, but you could also use green onion or yellow onion.
    • Baby spinach leaves, chopped. I used fresh spinach, but you could also use frozen spinach. If you use frozen spinach, defrost the spinach first and squeeze it dry with a paper towel. Remove as much liquid as possible.
    • Feta cheese. I used feta cheese, but you could also use shredded mozzarella cheese or cheddar cheese. You could also leave out the cheese if you want to have a vegan omelette or cut calories.
    • Salt and pepper, to taste. Keep in mind that the feta cheese is quite salty, so you may not even need any salt.
    • Olive oil. I used extra virgin olive oil. You could also use avocado oil.

    🍳 How to make a spinach and mushroom omelette with feta cheese

    This easy spinach and mushroom omelette with feta cheese is a perfect way to start your day. It's hearty, healthy, and loaded with flavor!

    This recipe will give you a breakfast that will not disappoint. The ingredients are extremely simple to put together which is half the battle when cooking. Let's get started!

    Whisk together eggs, then add chopped mushrooms, spinach, red onion, salt, and pepper.

    Ingredients for the omelette whisked together in a glass bowl.

    Melt olive oil in a non-stick skillet on low-medium heat.

    Pour the egg mixture into the hot pan. Spread it out evenly.

    Cook for about 5 minutes, until the bottom of the eggs turn a light golden brown color.

    The omelette ingredients poured into a skillet.

    Carefully flip over the egg, like a big pancake. This ensures the egg is cooked evenly. I hate runny eggs.

    Spread feta cheese evenly on the top of the omelette. Continue to cook for about 5 more minutes, until the egg on the bottom is nicely browned.

    The feta cheese is crumbled and spread evenly on top of the omelette.

    Fold the omelette in half. Slide it onto a plate and serve. Enjoy!

    The omelette on a white plate with a salad.

    💭 Top tips

    • Cook the omelet on low-medium heat to ensure it does not burn. It is 2.5 on our dial.
    • Don't walk away from the stove, it cooks quickly.
    • Use a rubber spatula to flip the omelet. It tears less easily.

    🌡️ Storage

    FRIDGE: Place the cooled omelette in an airtight container, or wrap it tightly in plastic wrap. Store in the refrigerator for up to 3 days.

    FREEZER: Wrap the cooled omelette in plastic wrap and place in a Ziploc bag. Remove as much air as possible from the bag. Store in the freezer for up to 2 months.

    ♨️ How to reheat an omelette

    Microwave: To reheat an omelette, you can wrap it in a paper towel, place it on a microwavable plate, and heat it in the microwave for about 1-2 minutes.

    Stove: Add about 1 tablespoon of olive oil to a skillet. Place the omelette in the skillet and heat through. When it is hot on the bottom, flip it over until that side is hot.

    Oven: Heat the oven to 350 degrees F. Place omelette on a baking pan. Cover with aluminum foil and heat for about 10 minutes, until heated through.

    Air fryer: Place the omelette on a heat-proof plate and place it in the air fryer. Use the reheat function until heated through, about 3-5 minutes.

    🍳 What is the best pan for making omelettes?

    I find the best pans for making omelettes are non-stick 8-inch skillets.

    The trick is to preheat the pan, and don't have the heat turned up too high.

    Cast iron skillets also work, but you have to be careful the heat is not too high, otherwise it will burn and it will break apart when flipping it.

    🍄 Do you need to cook the vegetables first?

    In my opinion, no. From my experience, I do not find I need to cook the vegetables first. For example, even though mushrooms are a wetter vegetable, I do not find they need to be cooked, and my omelets have never turned out soggy. But by all means, if you want, saute your veggies in a small pan before adding them to your omelette.

    📖 Variations

    The ingredients in this omelette can be changed to suit your tastes. Some fun ones to try are:

    • Egg white spinach omelette: Use only egg whites and omit the egg yolks for a healthy omelette.
    • Bacon spinach omelette: Add cooked, crumbled bacon to the omelette.
    • Chicken omellete recipe: Add cooked, chopped chicken to the omelette for extra protein.
    • Seasoning: Adjust the seasoning to suit your tastes. This omelette would be delicious with basil or dill added.
    • Basically, whatever you have on hand, you can put in an omelet. If you want meat, add cooked ham, bacon, chorizo, or even salmon.
    • Add some of your favorite vegetables. I think kale, asparagus, tomato, leek, broccoli, and peppers would be great. Use up whatever veggies you have in your fridge!
    • Don't be afraid to add in any ingredients you think you will like!

    🥘 1-egg omelette calories

    If you make this omelette using 1 egg, it will have about 251 calories.

    🥘 2-egg omelette calories

    If you make this omelette using 2 eggs, it will have about 314 calories.

    🥘 3-egg omelette calories

    This omelette, made with 3 eggs, is about 377 calories.

    The spinach omelette on a white plate with a side salad with the ingredients to make the omelette beside the plate.

    🥗 What to serve with spinach mushroom omelette with feta

    • Fruit Salad with Cool Whip and Pudding
    • Green salad
    • Sliced avocado.
    • Fresh fruit.
    • Tomatoes.
    • Crispy oven-roasted potatoes or hashbrowns.
    • Toast.
    • English muffin.
    • Homemade Air Buns
    • Keto Pumpkin Smoothie

    I hope you enjoyed this Easy Spinach And Mushroom Omelette with Feta Cheese (Keto) recipe. If you try it out and like it, I would appreciate it if you could take a moment to leave a star rating below.

    Thank you so much for reading my article, and don't forget to share it with your friends on social media!

    You can also Follow Me on Instagram, Facebook, and Pinterest. Don't forget to tag me in your photos @windingcreek_ranch!

    📋 Recipe

    A spinach onelet on a white plate with a spinach salad.

    Spinach Mushroom Omelette With Feta Cheese (Keto)

    This super-easy Spinach and Mushroom Omelette with Feta Cheese is loved by everyone who tries it! It's a keto-friendly recipe and a great low-carb breakfast idea. Start off your day with this filling, healthy, nutritious omelette; a great way to get a hearty breakfast on the table in less than 15 minutes! If you are looking for an easy breakfast recipe that tastes great and is good for you, this one is it!
    5 from 15 votes
    Print Pin Rate Save Saved!
    Course: Breakfast
    Cuisine: American
    Prep Time: 5 minutes
    Cook Time: 10 minutes
    Total Time: 15 minutes
    Servings: 1
    Calories: 377kcal
    Author: Jeri Walker
    Prevent your screen from going dark

    Equipment

    • Skillet

    Ingredients

    • 3 eggs
    • ½ cup fresh mushrooms chopped
    • ¼ cup red onion chopped
    • ¾ cup spinach chopped
    • ¼ cup feta cheese crumb;ed
    • 1 tablespoon olive oil
    • Salt and pepper to taste

    Instructions

    • Whisk together eggs, salt and pepper, mushrooms, spinach, and red onion.
    • Heat a frying pan on medium heat with 1 tablespoon of olive oil.
    • Once the pan is heated, pour the egg mixture into the frying pan.
    • Cook until the bottom of the egg is a light golden brown, about 5 minutes.
    • With a rubber spatula, carefully flip the egg over like a pancake so it will cook underneath.
    • Add crumbled feta cheese evenly on the omelette. Cook for about 5 more minutes.
    • When the omelette is lightly browned on the bottom, flip the omelette in half and serve!
    • Enjoy!

    Video

    Notes

    Nutritional information is approximate and is meant as a guideline only.
    TOP TIPS:
    • Cook the omelet on low-medium heat to ensure it does not burn. It is 2.5 on our dial.
    • Don't walk away from the stove, it cooks quickly.
    • Use a rubber spatula to flip the omelet.  It tears less easily.
    STORAGE:
    FRIDGE: Place the cooled omelette in an airtight container, or wrap it tightly in plastic wrap. Store in the refrigerator for up to 3 days.
    FREEZER: Wrap the cooled omelette in plastic wrap and place in a Ziploc bag. Remove as much air as possible from the bag. Store in the freezer for up to 2 months.
    • Don't be afraid to make the recipe suit your own tastes.  Leave out the onion if you are not a fan.  Use canned mushrooms if you don't have fresh. Use frozen spinach if you don't have fresh. 
    • Add in extra vegetables if you have them.
    • This omelet will turn out great.  You can't mess it up.  The worse thing that will happen is you will end up with scrambled eggs. 
     

    Nutrition

    Calories: 377kcal | Carbohydrates: 8.2g | Protein: 24.1g | Fat: 27.8g | Saturated Fat: 10.8g | Cholesterol: 524.4mg | Sodium: 847.4mg | Potassium: 500.7mg | Fiber: 1.5g | Sugar: 4.5g | Vitamin A: 363.6IU | Vitamin C: 10mg | Calcium: 291.3mg | Iron: 3.4mg
    L❤️VE this recipe? PIN it for later! 😊Mention @windingcreek_ranch or tag #windingcreek_ranch on IG!

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    Reader Interactions

    Comments

    1. Cindy Mom the Lunch Lady

      August 22, 2021 at 7:02 am

      5 stars
      Mushroom and spinach are a staple in our omelet making. We love to serve ours topped with a bit of hollandaise sauce 😍

      Reply
      • Jeri

        August 24, 2021 at 7:40 am

        Hollandaise sauce would be a great addition! Thanks for the tip! 🙂

        Reply
    2. Jean

      August 22, 2021 at 3:43 am

      5 stars
      I remember growing up we have chickens too, this is a quick fix breakfast for me.

      Reply
    3. Kayla DiMaggio

      August 21, 2021 at 8:46 am

      5 stars
      Made this omlet for breakfast this morning and it was so delicious! Can't wait to eat it again!

      Reply
    4. Suzy

      May 19, 2021 at 3:31 pm

      5 stars
      We love making omelets for a quick lunch! The spinach and mushrooms taste so good on it!

      Reply
      • Jeri

        May 19, 2021 at 4:08 pm

        Me too! Omelets are so quick to make!

        Reply
    5. Anjali

      May 19, 2021 at 2:12 pm

      5 stars
      This omelette turned out perfectly!! It made a delicious, easy breakfast for my whole family this morning! Love that it's packed with veggies too!

      Reply
      • Jeri

        May 19, 2021 at 4:07 pm

        I'm so glad you liked it, Anjali!

        Reply
    6. Kay

      May 19, 2021 at 2:05 pm

      5 stars
      I used chestnut mushrooms for this for my breakfast came out really good!

      Reply
      • Jeri

        May 19, 2021 at 4:10 pm

        I'm so glad you liked it, Kay! Chestnut mushrooms, what a great idea!

        Reply
    7. Adriane=ne

      May 19, 2021 at 1:59 pm

      5 stars
      Egg recipes are the best and this one looks positively filling! Love a mushroom and egg combo also. Thanks

      Reply
      • Jeri

        May 19, 2021 at 2:04 pm

        Thanks, I hope you like it!

        Reply
    8. Pam

      May 19, 2021 at 1:48 pm

      5 stars
      Love this recipe and that you raise your own chickens! How fun!!!

      Reply
      • Jeri

        May 19, 2021 at 2:04 pm

        I'm glad you like it, Pam!

        Reply
        • Freya

          August 21, 2021 at 9:24 am

          5 stars
          Such a great recipe with delicious classic flavours!!

          Reply

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