Easy Keto Frittata with Shiitake Mushrooms

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Whip up this easy keto frittata for breakfast, lunch or dinner. It’s stuffed with a hearty mix of mushrooms, cheese and greens. This and other easy keto recipes make breaking the night fast a protein-rich meal a good way to go.

Swiss Chard, Feta and Mushroom Frittata

Frittatas are a family favorite – eggs, veggies and cheese wrapped up in one dish. This is just one of many keto breakfast ideas you can make!

In my early days of keto, many of my frittatas were delicious, but end up too eggy and failed to make me full. Essentially, they were just pieces of fluffy eggy air.

I’ve since learned to approach frittatas like ketogenic omlettes – stuff them full of your favorite fillings!

The secret key, is to add double the amount of filling you would add to an omelette. Really put the fill in filling!

Frittatas work best when they are loaded with mushrooms, greens, and cheese, or bell peppers, olives and spinach, or sausage, cream cheese and herbs.

swiss chard feta mushroom frittata

This easy keto frittata recipe was developed to showcase the best that fritatas have to offer.

Mixing eggs with cream, cheese and mushrooms makes a very filling dish! Each serving of this easy keto frittata has about 30 g fat and 26 g protein. You can add a half of an avocado or a dollop of sour cream on top if you want additional fats. If you want more protein, have a second serving or add a hard-boiled egg or two on the side. We keep hard-boiled eggs in the fridge, on hand to easily add into any meal. Our children also like hard-boiled eggs. I make bulk batches of about 30 eggs at a time.

easy keto frittata feat image

Swiss Chard, Feta and Mushroom Frittata

Jessica Haggard
Whip up this easy keto frittata for breakfast, lunch or dinner - stuff it full of mushrooms, cheese and greens and you'll be sitting down to enjoy a hearty meal before you know it.
5 from 4 votes
Prep Time 10 mins
Cook Time 25 mins
Total Time 35 mins
Course Breakfast, Dinner
Cuisine American
Servings 4 servings
Calories 272 kcal



  • Heat the oven to 400°F.
  • Whisk the eggs and cream together in a medium bowl. Add the salt. Set aside.
  • Saute mushrooms in butter with garlic, thyme and black pepper until soft, about 7 minutes, in a skillet.
  • Rinse the Swiss chard and add to the pan to wilt. Stir around for 1 minute.
  • Transfer the sauteed veggies to an 8x8-inch glass baking dish. Add a layer of cheese, sprinkle it on evenly across the dish. Pour the egg mixture over the cheese. Gently tilt the dish around to allow the eggs settle evenly.
  • Place dish in the oven and bake for 15 minutes. Wait for the edges to brown and the center to set.
  • Turn the top crispy and brown by cooking the frittata under the broiler for the last two minutes of cooking.
  • Remove from oven, let cool for 5 minutes then slice and serve. Save your leftovers for lunch the next day!

Nutrition & Macros

Calories: 272kcalCarbohydrates: 8gProtein: 11gFat: 23gSaturated Fat: 15gCholesterol: 92mgSodium: 1308mgPotassium: 324mgFiber: 2gSugar: 4gVitamin A: 2268IUVitamin C: 9mgCalcium: 311mgIron: 1mg

To obtain the most accurate representation of the nutritional information in a given recipe, please calculate the nutritional information with the actual ingredients and amounts used, using your preferred nutrition calculator. Under no circumstances shall the this website and the author be responsible for any loss or damage resulting for your reliance on the given nutritional information.

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3 thoughts on “Easy Keto Frittata with Shiitake Mushrooms”

  1. This is a great recipe that can be adapted to different vegetables and cheeses and herbs for that matter! It is a keeper. So easy, so fast and so good.

    • Yes! I totally agree with you! The base of eggs, cheese, and cream is solid and can be enjoyed with any flavors you like.


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