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5 from 2 votes

Keto Portabello Pizzas

These keto pizzas are rich and satisfying. Each pizza is approximately 5 total carbs or 4 net carbs excluding the pizza sauce. There are so many keto options for pizza sauce, I opted not to include it in the final count. You can use very low carb options such as alfredo sauce, olive oil & herbs, ranch dressing or even spinach artichoke dip. Enjoy!
Prep Time15 mins
Cook Time10 mins
Total Time25 mins
Course: Appetizer, Keto, Main Course, Main Dish
Cuisine: Italian, Keto
Keyword: pizza
Servings: 4 mushrooms
Calories: 391kcal
Author: Tara Wright


  • 4 large Portabello Mushrooms
  • .25 cup Olive Oil extra virgin
  • 1 tbsp dried basil (or fresh)
  • 3 cup whole milk mozzarella cheese
  • Pizza Sauce of choice (low carb pizza sauce, alfredo sauce, ranch dressing, olive oil, ect)


  • Preheat oven to 350 degrees (325 degrees if using convention)
  • Wash your portabella mushrooms and gently remove the stem from each mushroom. Discard the stems.
  • Brush olive oil onto the bottom of the mushrooms. The mushrooms act as a sponge and really soak in the oil. Then, sprinkle on dried basil or pizza seasonings. Flip mushrooms over and arrange on a baking sheet.
  • Now it's time to assemble the low carb pizzas!
  • Lightly cover the inside of the portabella with a pizza sauce of your choice. You can use a traditional sauce or lower carb options such as alfredo sauce, ranch dressing, olive oil, ect.
  • Top with cheese, herbs and toppings of your choice.
  • Bake in a preheated oven for 8-10 minutes. If cheese has not yet melted to your satisfaction, broil the mushrooms on your lowest broil setting for an additional minute or two.
    Note that cooking times vary based on the size of the mushroom. The trick is to avoid over cooking them as they will start releasing a lot of liquid. So, if there's a lot of liquid on your plate or baking dish, cut the cooking time next time.


Note that the pizza sauce is NOT included in the nutrition facts because there are so many different options! See the blog post for suggestions.


Calories: 391kcal | Carbohydrates: 5g | Protein: 21g | Fat: 33g | Saturated Fat: 13g | Cholesterol: 66mg | Sodium: 535mg | Potassium: 383mg | Fiber: 1g | Sugar: 3g | Vitamin A: 570IU | Calcium: 438mg | Iron: 1.2mg