Easy Keto Frittata Recipe with Spinach and Cheese

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Start the day right with this easy keto frittata recipe featuring fluffy eggs, tangy feta cheese, and tender spinach. This satisfying and nutritious meal will keep you full and energized for hours. Plus, this delicious vegetarian keto breakfast can be on your kitchen table from start to finish in just 20 minutes.

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Easy Keto Frittata

Frittatas are one of my favorite keto breakfast foods – eggs, veggies, and cheese wrapped in one dish. They are quick meal ideas that double for brunch or a great lunch. And if you’re like me, you don’t need to warm it up as I enjoy the cold leftovers.

Easy keto recipes make breakfast meal prep a breeze. With just five minutes of prep, you can put food in the oven and move on with your day.

I struggled with frittatas because they were delicious but too eggy and light. It seemed like I could eat the whole thing and still be hungry.

But here’s the secret: You must treat them like keto omelettes – stuff them with your favorite fillings!

There are many variations to try, so feel free to be creative with whatever you already have on hand. Like a baked omelette, baking a frittata is an excellent opportunity to use leftover veggies and herbs.

How to Make Keto Frittata

Gather ten basic ingredients, and you’re halfway to making spinach and feta frittata in just 20 minutes. That includes 5 minutes of prep time and 15 minutes for baking!

Ingredients

• Eggs – Since the eggs are the star of this dish and hold all the ingredients together, buying the best quality, like free-range, pastured eggs is a good idea.
• Heavy whipping cream – Besides healthy fats, heavy cream gives the omelette volume and an incredible texture.
• Butter – Unsalted butter is best as you control the saltiness of the dish. Choose grass-fed butter, if the budget allows.
• Fresh spinach – This popular leafy green adds flavor, texture, and nutrition to frittata. Cook it slightly in a skillet first, so it’s tender and sweet, providing a delicate balance to the richness of the rest of the ingredients. 
• Feta cheese – The creamy and crumbly texture of feta balances out the eggs’ fluffy and light consistency while adding a tangy and salty flavor. 
• Aromatics – Garlic and fresh herbs like green onion and thyme add flavor and depth that will delight your taste buds.
• Salt and black pepper – Just a pinch of seasoning to balance all the flavors!

Substitutions and Variations

Once you have the basics for this keto frittata recipe, you can experiment with other flavors and textures. 

• Leafy green – Swap out the spinach for Swiss chard, kale, or sorrel.
• Add veggies – Toss in diced red bell pepper and red onions for contrasting colors, flavors, and textures. This easy frittata recipe is great for using up leftover vegetables. Add mushrooms for a mushroom frittata.
• Change up the cheese – Make your own spin on this egg dish and use whatever cheese you like. Feta is a classic choice, but goat cheese would be equally delicious. Or you can go with something more common, like Parmesan or sharp cheddar cheese.
• Add protein – A great way to bulk up this healthy breakfast is by adding cooked meat like turkey sausage to the egg mixture. 

• Dairy-Free – Use ghee instead of butter, and swap the heavy cream with almond milk. The texture won’t be as rich, but it will still be delicious. Omit cheese.
• Whole30 – Use dairy-free substitutions for butter and milk, and omit cheese.
• Paleo – If you tolerate dairy, you can make the recipe as is. However, if you are on strict paleo and must avoid dairy, make appropriate substitutions, as mentioned above. 
• GAPS – Omit heavy cream and use aged cheeses like Parmesan cheese or Monterey Jack cheese, as fresh cheese is not GAPS compliant.

Step-by-Step Directions

Follow these simple steps for a delicious keto egg frittata that you can enjoy in no time!

Step 1: Whisk

First, begin by preheating the oven to 350°F (177°C).

Second, whisk eggs, cream, and green onion in a large bowl. Season with thyme, salt, and pepper.

Step 2: Saute

Add butter to an oven-safe skillet like a cast iron pan over medium heat on the stove top.

Using oven-safe cookware is the easiest shortcut to one-pan and one-pot meals. Contrary to what you might think, cleaning cast iron is easy and seasoning isn’t too hard either.

Once the butter melts, sauté minced garlic for one minute, then add the spinach and stir until it slightly wilts.

Remove the spinach and garlic from the heat and add them to the eggs in a bowl. 

Step 3: Add feta

Next, crumble the feta cheese with your hands and stir until combined.

Step 4: Pour

Add more butter to the cast-iron skillet if needed to ensure nothing sticks. Pour the egg mixture into the skillet.

Use a fork or spatula and move the spinach around so it’s evenly distributed throughout the frittata.

Step 5: Bake

Lastly, bake for 15-20 minutes in a preheated oven until golden brown and the edges set.

Remove from heat and allow to rest for a few minutes before serving.

Easy Keto Frittata FAQ

Keto Breakfast Recipes with Eggs

Following a low carb diet can be challenging, especially when it comes to breakfast. Traditional breakfast foods like pancakes, waffles, and cereal are out of the question. 

The good news is that with just a little creativity and planning ahead, you can still have a satisfying and delicious keto breakfast every day. 

Make sure to fill out your printable keto meal planner full of delicious, quick, and easy low-carb breakfast options like this cheesy breakfast casserole or portobello egg bake. 

And you won’t regret adding a Mexican omelette to your meal plan. Pepper jack sausage balls are another spicy and delicious way to start the day.

Great keto recipes allow you to enjoy a satiating and tasty breakfast on a busy weekday or fancy weekend brunch!

First published on May 15, 2018. Later updated with new tips and images.