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Keto Cheese-Stuffed Portobello Mushrooms

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★★★★★★★★★★
4.8 stars, average of 153 ratings
By Martina Slajerova, updated October 22 20216
This post may contain affiliate links, see our disclaimer.
Jump to Recipe Rate Recipe

Keto Cheese-Stuffed Portobello MushroomsShareFollow us 261.1k

I love simple meals that don't take long to prepare and this recipe is definitely one of them. If you want to add more protein, eat with some crisped up bacon or high-quality ham. If you want to add some heart-healthy fats, eat with avocados.

Here are a few reasons why you should eat mushrooms:

  • they are low in net carbs and calories (2-4 g net carbs per 100 g/ 3.5 oz)
  • they are a good source of fiber
  • they are a great source of potassium which helps with "keto-flu" when you are on a low-carb diet (this recipe gives you about 35% RDA of potassium per portion)
0 days, 0 hours, 20 minutes

Hands-on 5 minutes Overall 25 minutes

Serving size 2 mushrooms + greens

Allergy information for Keto Cheese-Stuffed Portobello Mushrooms

✔  Gluten free
✔  Egg free
✔  Nut free
✔  Nightshade free
✔  Pork free
✔  Avocado free
✔  Coconut free
✔  Fish free
✔  Shellfish free
✔  Beef free
Pescatarian
Vegetarian

Nutritional values (per 2 mushrooms + greens)

Net carbs5.5 grams
Protein14.3 grams
Fat28.5 grams
Calories334 kcal
Calories from carbs 7%, protein 17%, fat 76%
Total carbs7.9 gramsFiber2.3 gramsSugars4.1 gramsSaturated fat11.3 gramsSodium885 mg(38% RDA)Magnesium16 mg(4% RDA)Potassium733 mg(37% EMR)

Ingredients (makes 2 servings)

  • 4 Portobello mushrooms (300 g/ 10.6 oz)
  • 100 g crumbled blue cheese (3.5 oz)
  • fresh thyme
  • 2 cups shredded lettuce or leafy greens of choice (57 g/ 2 oz)
  • 2 tbsp extra virgin olive oil (30 ml)
  • sea salt, to taste

Instructions

  1. Preheat the oven to 175 °C/ 350 °F (fan assisted), or 195 °C/ 380 °F (conventional). Clean the mushrooms and remove the stem. Season with salt to taste. Keto Cheese-Stuffed Portobello Mushrooms
  2. Chop the stems into small pieces and add fresh thyme leaves. Keto Cheese-Stuffed Portobello Mushrooms
  3. Fill each mushroom with crumbled blue cheese, chopped stems and thyme. Place in the oven for about 20 minutes. Keto Cheese-Stuffed Portobello Mushrooms
  4. Remove from the oven and place on a serving plate with fresh greens tossed with olive oil. Serve immediately or store the mushrooms in the fridge for up to 3 days and reheat before serving. Keto Cheese-Stuffed Portobello Mushrooms

Cheese-stuffed Portobello Mushrooms
Step by Step

★★★★★★★★★★
4.8 stars, average of 153 ratings
Cheese-stuffed Portobello Mushrooms
These vegetarian keto mushrooms are stuffed with salty blue cheese and thyme and served with a side of dressed greens. A simple keto dinner recipe in less than 30 minutes.
Hands on5m
Overall25m
Servings2
Calories334 kcal

Ingredients

  • 4 Portobello mushrooms (300 g/ 10.6 oz)
  • 100 g crumbled blue cheese (3.5 oz)
  • fresh thyme
  • 2 cups shredded lettuce or leafy greens of choice (57 g/ 2 oz)
  • 2 tbsp extra virgin olive oil (30 ml)
  • sea salt, to taste

Instructions

  1. Preheat the oven to 175 °C/ 350 °F (fan assisted), or 195 °C/ 380 °F (conventional). Clean the mushrooms and remove the stem. Season with salt to taste.
  2. Chop the stems into small pieces and add fresh thyme leaves.
  3. Fill each mushroom with crumbled blue cheese, chopped stems and thyme. Place in the oven for about 20 minutes.
  4. Remove from the oven and place on a serving plate with fresh greens tossed with olive oil. Serve immediately or store the mushrooms in the fridge for up to 3 days and reheat before serving.

Nutrition (per serving, 2 mushrooms + greens)

Calories334kcal
Net Carbs5.5g
Carbohydrates7.9g
Protein14.3g
Fat28.5g
Saturated Fat11.3g
Fiber2.3g
Sugar4.1g
Sodium885mg
Magnesium16mg
Potassium733mg

Detailed nutritional breakdown (per 2 mushrooms + greens)

Net carbsProteinFatCalories
Total per 2 mushrooms + greens
5.5 g14.3 g28.5 g334 kcal
Portobello mushrooms, fresh
3.9 g3.2 g0.5 g33 kcal
Cheese, blue
1.2 g10.7 g14.4 g177 kcal
Thyme, fresh
0.1 g0.1 g0 g1 kcal
Red leaf lettuce, fresh
0.4 g0.4 g0.1 g4 kcal
Olive oil, extra virgin
0 g0 g13.5 g119 kcal
Salt, sea salt
0 g0 g0 g0 kcal

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Martina Slajerova
Creator of KetoDietApp.com

Martina Slajerova

I changed the way I ate in 2011, when I was diagnosed with Hashimoto’s, an autoimmune disease that affects the thyroid. I had no energy, and I found it more and more difficult to maintain a healthy weight.

That’s when I decided to quit sugar, grains, and processed foods, and to start following a whole-foods-based ketogenic approach to food.

More posts by Martina Slajerova
Martina Slajerova
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Comments (6)

Jeffrie Story 6 years ago # Reply
1/17/2019 3:25:28 AM

I wish you'd put a small photo in the print part of your recipes.  I often end up tossing recipes after printing if I don't have a photo.  They're just not as alluring.  That's why I love AllRecipes.com, except there aren't many keto recipes, and NO Fat Bombs, of course.
You could also add branding at the top, after the recipe's name, such as:
Jalapeño Popper Fat Bombs
by Martina at KetoDiet
Best wishes!  (I just found your blog so can't comment on it or the recipes.)

Martina @ KetoDiet 6 years ago # Reply
1/18/2019 12:30:10 AM

Thank you Jeffrie, there is a photo on the top right - could it be your browser/printer? 😊

Carol 8 years ago # Reply
10/11/2016 1:34:58 PM

I had some portobellos that I needed to use (you know how use-or-lose is) today, and this looks perfect.  Thank you so much!  

Martina @ KetoDiet 8 years ago # Reply
10/13/2016 12:03:16 AM

I hope you like it! 😊

Tobi 11 years ago # Reply
7/24/2013 5:19:02 PM

It looks pretty simple but yummy! I think i'll try it with feta cheese as i don't have any blue. Did the mushrooms get soggy though?

KetoDiet 11 years ago # Reply
7/24/2013 5:57:44 PM

Thank you! Mushrooms have a lot of water - good point, I should have added that in the notes. I cooked them on a rack, so all the excess water dripped on the cooking tray 😊
I love feta - you can use it instead of the blue cheese. And I would maybe use oregano instead of thyme - it goes better with feta 😊

Martina Slajerova

Looking for healthy low-carb and keto recipes? We've got you covered!

I'm Martina, a x10 cookbook author, top rated keto diet app creator, recipe developer, food photographer, writer, and a firm believer in low-carb living.

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