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    Home ยป Recipes ยป Italian

    Mushroom Pizzas

    Published: Jul 16, 2023

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    Individual Portobello Mushroom Pizzas are a fun and tasty way to NOT feel like you're missing out, when going keto. Super customizable, too!

    2 deluxe keto portobello pizzas on a plate. They are topped with green pepper, pepperoni, and black olives.

    Portobello pizzas are something weโ€™ve been making often on my weight loss journey.

    Rather than a traditional crust, this involves topping a large portobello mushroom cap with our favorite pizza toppings.

    As a long time pizza lover, Iโ€™ve got to say - itโ€™s a great way to indulge my pizza cravings in a way thatโ€™s not only a great option for MY diet - keto - but in a way thatโ€™s enjoyed by the whole family.

    Itโ€™s an easy dinner that comes together in just minutes - fantastic for quick weeknight meals! There have been times where weโ€™ve found ourselves making this portobello pizza recipe on a daily basis!

    So yeah, you could probably say itโ€™s one of our favourite recipes!

    Anyway, letโ€™s get to it. You could be less than 15 minutes away from enjoying all the flavours of a good pizza... just on a mushroom crust!

    A close up photo of a deluxe portobello mushroom pizza.

    Ingredients

    This portobello mushroom pizza recipe uses really basic ingredients that will be easy to find in any grocery store. The best part? Thereโ€™s a ton of room for customization, too!

    Some notes for you:

    Portabello Mushrooms

    Portobello mushrooms are what takes the place of pizza dough, providing the low carb โ€œpizza crustโ€ for these portobello pizza mushrooms.

    I like to use a large mushroom - or two! - per person. If you have smaller mushroom caps, you can do them up as mini pizzas -just keep an eye on the cooking progress.

    Mushrooms give up a lot of water as they cook, so you donโ€™t want to cook them TOO long - and smaller ones cook faster.

    Tomato Sauce

    I like to use marinara sauce on this - a low sugar version, like Rao's Marinara Sauce or my Keto Marinara Sauce... when I have some on hand.

    In a pinch, Iโ€™ve used tomato paste thatโ€™s been thinned with a little chicken broth - it brings extra flavor, but also extra carbs.

    All that said, you donโ€™t need to feel tied to using a tomato based sauce as your pizza sauce.

    If it fits your dietary needs / restrictions, try using Alfredo sauce, BBQ Sauce, or even basil pesto!

    Cheeses

    I use 2 cheeses in this recipe, most of the time: Shredded Mozzarella Cheese, and Shredded Parmesan Cheese.

    That said, feel free to use any type of cheese that suits your needs and tastes. If youโ€™d order it on a pizza, it belongs!

    If youโ€™re feeling fancy, you can even crumble goat cheese over mushroom cap pizzas that have been topped with, say, baby spinach, sun-dried tomatoes, artichoke hearts and grilled chicken.

    Yum!

    Toppings

    The beauty of this recipe is that you can use whatever your favorite toppings are - whether weโ€™re talking traditional pizza toppings, or more off-the wall.

    We tend to go with classic pizza flavors as our default, making a kind of โ€œdeluxeโ€ pizza.: Pepperoni, black olives, green bell pepper.

    (The mushrooms usually present are already taken care off, with the โ€œcrustโ€!)

    Sometimes weโ€™ll cook up some Italian sausage - finely crumbled - and use that. Other times, we may add some crispy bacon.

    Sliced up cherry tomatoes can be a tasty - and cute - addition.

    Really, use whatever you like - just chop it up smaller than you would for a normal pizza!

    Herbs & Seasonings, Optional

    If youโ€™re using a tasty pizza sauce, herbs and seasonings are optional, but still nice.

    Iโ€™ll shake a bit of whatever Iโ€™m in the mood for, right at the end. Usually, this is some combination of:

    Crushed Red Pepper Flakes
    Dried Basil
    Dried Oregano
    Garlic Powder
    Italian Seasoning

    Sometimes Iโ€™ll add a bit over the pizza sauce - before adding toppings - as well.

    Other times, Iโ€™ll chop up some fresh basil and use that, too!

    2 portabella mushroom pizzas on a plate.

    How to Make Portabello Mushroom Pizzas

    The full recipe is in the recipe card at the end of this post, here is the pictorial walk through.

    Preheat oven to 450 F, generously spray a broiling or roasting pan with oil. Set aside.

    Prepare your toppings. I like to cut everything fairly small.

    A 5 part image showing the pepper, pepperoni, and black olives being chopped, the mushrooms being prepared, and everything laid out, ready to assemble.

    Remove stems from each of the portobello mushroom caps, gently scrub mushroom caps with a damp paper towel or damp cloth.

    If youโ€™d like to scrape the dark gills out from the underside of the caps, use a spoon to do so at this point - we generally donโ€™t bother.

    Arrange mushroom caps - rounded side down - on broiling pan.

    Spread each mushroom with a Tablespoon or so of tomato sauce, then top with about half the toppings you want to use.

    Divide shredded mozzarella over each pizza, spreading it evenly over each mushroom cap.

    Scatter remaining pizza toppings over each mushroom.

    A 5 part image showing the sauce being spread on the mushrooms, then topped with the prepared toppings and cheese.

    ... then top with a little Parmesan cheese.

    If using seasonings, sprinkle a bit over each pizza.

    A plate of 4 prepared portobello mushroom pizza servings, now with parmesan cheese added on top.

    If youโ€™re premaking the pizzas to cook later the same day, you can cover them with plastic wrap (or put them in an airtight container) and store them in the fridge.

    4 prepared portabella mushroom pizzas on a plate, covered with plastic wrap.

    Roast in the preheated oven for 10 minutes, or until cheese melts and mushrooms are just heated through.

    If you like, you can put it under the broiler to brown the cheeses.

    Note: For best results, donโ€™t over cook these. Long cook times bring out a lot of water, and extra moisture can mean soggy mushrooms!

    4 prepared portobello mushroom pizzas on a broiling pan, before and after cooking.

    Serve immediately, with a side salad or other side dish if you like.

    This doesnโ€™t work super well as leftovers, but you CAN prepare the pizzas ahead of time and just cook them as needed. Theyโ€™ll be good in the fridge for a few days before cooking.

    2 portobello mushroom pizzas on a plate.

    More Keto Italian Recipes

    Missing your dinners out at Italian restaurants? Here are a few keto recipes to make low carb versions at home!

    Keto Mozzarella Sticks
    Low Carb Chicken Piccata Zoodles
    Keto Chicken Parmesan
    Pizza Stuffed Peppers
    Low Carb Marinara Sauce
    Keto Spinach Feta Lasagna [Spanakopita Lasagna]
    Pesto Chicken Lasagna
    Keto Lasagna
    Low Carb Tiramisu
    Keto Biscotti
    Italian Wedding Soup
    Low Carb Spaghetti and Meatballs
    Keto Stromboli Meatloaf

    2 keto mushroom pizzas on a plate.

    Share the Love!

    Before you chow down, be sure to take some pics of your handiwork! If you post it to Bluesky, be sure to tag us - @CelebrationGen. We're also on Pinterest, so you can save all your favourite recipes to a board!

    Also, be sure to subscribe to my free email newsletter, so you never miss out on any of my nonsense... Well, the published nonsense, anyway!

    ... and hey, if you love the recipe, please consider leaving a star rating and drop us a line in the comment section! (Sharing the post on social media is always appreciated, too!)

    A close up view of a keto portobello mushroom pizza.

    A close up view of a keto portobello mushroom pizza.
    Print Recipe Pin Recipe Save Recipe Saved!
    5 from 1 vote

    Easy Portobello Mushroom Pizzas - Low Carb & Gluten Free!

    Individual Portobello Mushroom Pizzas are a fun and tasty way to NOT feel like you're missing out, when going keto. Super customizable, too!
    Prep Time5 minutes mins
    Cook Time10 minutes mins
    Total Time15 minutes mins
    Course: Main Course
    Cuisine: American, Italian
    Diet: Diabetic, Gluten Free
    Servings: 4 Individual Pizzas
    Calories: 140kcal

    Equipment

    • Broiling Pan

    Ingredients

    • 4 Portabello Mushrooms
    • โ…“ cup Tomato Sauce
    • Toppings I use Pepperoni, Green Bell Pepper, and Black olives
    • 1 cup Shredded Mozzarella Cheese
    • โ…“ cup Shredded Parmesan Cheese
    • Seasonings optional. Garlic Powder, Italian Seasoning, Oregano etc.

    Instructions

    • Preheat oven to 450 F, generously spray a broiling or roasting pan with oil. Set aside.
    • Remove stems from each of the mushrooms, gently scrub mushroom caps with a damp paper towel. If youโ€™d like to scrape the gills out, use a spoon to do so at this point.
    • Arrange mushroom caps - rounded side down - on broiling pan.
    • Spread each mushroom with a Tablespoon or so of tomato sauce, then top with about half the toppings you want to use.
    • Divide shredded mozzarella over each pizza, spreading it evenly over each mushroom cap.
    • Scatter remaining pizza toppings over each mushroom, then top with a bit of Parmesan cheese.
    • If using seasonings, sprinkle a bit over each pizza.
    • Roast in the preheated oven for 10 minutes, or until heated through. If you like, you can put it under the broiler to brown the cheeses.
    • Serve immediately.

    Notes

    This doesnโ€™t work super well as leftovers, but you CAN prepare the pizzas ahead of time and just cook them as needed. Theyโ€™ll be good in the fridge for a few days before cooking.
    Note: The nutritional information can vary wildly based on what ingredients you're using, and how much of them.
    That being the case, "toppings" are not factored into the nutritional info provided.

    Nutrition

    Calories: 140kcal | Carbohydrates: 5g | Protein: 11g | Fat: 9g | Saturated Fat: 5g | Polyunsaturated Fat: 0.4g | Monounsaturated Fat: 2g | Trans Fat: 0.003g | Cholesterol: 28mg | Sodium: 413mg | Potassium: 395mg | Fiber: 1g | Sugar: 3g | Vitamin A: 343IU | Vitamin C: 1mg | Calcium: 245mg | Iron: 1mg

    2 low carb portabella mushroom pizzas on a plate.

    2 keto portobello mushroom pizzas on a plate.

    2 low carb portobello mushroom pizzas on a plate.

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