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Easy Keto Frittata with Shiitake Mushrooms

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.

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!

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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.

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easy keto frittata feat image

Swiss Chard, Feta and Mushroom Frittata

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
Print Pin Rate
Course: Breakfast, Main Course
Cuisine: American
Prep Time: 10 minutes
Cook Time: 25 minutes
Total Time: 35 minutes
Servings: 4 servings
Calories: 272kcal



  • 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!

Macros and Nutrition

Nutrition Facts
Swiss Chard, Feta and Mushroom Frittata
Amount Per Serving
Calories 272 Calories from Fat 207
% Daily Value*
Fat 23g35%
Saturated Fat 15g94%
Cholesterol 92mg31%
Sodium 1308mg57%
Potassium 324mg9%
Carbohydrates 8g3%
Fiber 2g8%
Sugar 4g4%
Protein 11g22%
Vitamin A 2268IU45%
Vitamin C 9mg11%
Calcium 311mg31%
Iron 1mg6%
* Percent Daily Values are based on a 2000 calorie diet.
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Swiss Chard, Feta and Mushroom Frittata

3 Responses

  1. Kathy S.
    | Reply

    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.

    • Jessica Haggard
      | Reply

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

  2. Angela
    | Reply

    5 stars
    Soo good

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