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!

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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 anytime 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

• 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.

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.

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.

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

💭 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.

🥗 What to serve with spinach mushroom omelette with feta

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

I WOULD LOVE TO HEAR FROM YOU!

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.

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