
This hearty Personal Portobello Pizza transforms a simple mushroom into a delicious low-carb pizza alternative that satisfies cravings without the guilt. I started making these when trying to cut back on refined carbs, and they quickly became a weeknight favorite.
I discovered this recipe during a late night craving when I had mushrooms but no pizza dough. Now it's my go-to comfort food when I want something satisfying but lighter than traditional pizza.
Ingredients
- Large portobello mushroom: The perfect natural pizza crust with a meaty texture and earthy flavor
- Spaghetti sauce: Choose a thick variety for less moisture and more concentrated flavor
- Mozzarella cheese: Opt for fresh if possible for that authentic pizza stretch
- Sliced black olives: Adds a briny Mediterranean flavor that balances the richness
- Pepperoni slices: Provides that classic pizza taste with a spicy kick
- Chopped garlic: Fresh is best for a more aromatic punch than pre-minced
Step-by-Step Instructions

- Prepare the Mushroom:
- Remove the stem completely and gently wipe the cap clean with a damp paper towel. Never soak mushrooms as they absorb water like sponges which can make your pizza soggy.
- Pre-Bake the Mushroom:
- Place the mushroom cap side down on a baking sheet and bake for 5 minutes at 375°F. This crucial step releases excess moisture from the mushroom ensuring your pizza won't be watery.
- Add the Sauce:
- Spread a tablespoon of spaghetti sauce evenly inside the cap. Be careful not to add too much or it will overflow during baking. The natural rim of the mushroom creates the perfect sauce barrier.
- Layer the Toppings:
- Sprinkle half the cheese first then add olives, pepperoni, and garlic before finishing with the remaining cheese. This layering method ensures toppings stick to the pizza and don't slide off when eating.
- Final Bake:
- Return to the oven for 20 minutes until the cheese bubbles and develops golden brown spots. Let rest for 2 minutes before serving to allow the cheese to set slightly making it easier to eat.
My absolute favorite way to enhance this recipe is using smoked mozzarella instead of regular. I discovered this variation when I accidentally grabbed the wrong cheese at the store and now I never go back. The smokiness perfectly complements the earthiness of the mushroom.
Selecting the Perfect Portobello
Choose firm mushrooms with intact caps and no slimy spots. Larger mushrooms make better pizza bases, so look for ones that are at least 4 inches in diameter. The underside should have dark brown gills that are dry, not wet looking, which indicates freshness. I prefer mushrooms with deeper caps that can hold more toppings without spillover.
Storage and Reheating
These mushroom pizzas are best enjoyed immediately after baking but can be stored in an airtight container in the refrigerator for up to two days. To reheat, place in a 350°F oven for 5–7 minutes until warmed through. Avoid microwaving as it makes the mushroom texture rubbery and releases too much moisture. I actually enjoy cold leftovers straight from the fridge the next day for lunch.
Customization Ideas
Transform this basic recipe into countless variations based on your favorite pizza styles. For a Mediterranean version, use feta cheese, olives, and a sprinkle of oregano. Create a breakfast pizza with a small cracked egg and diced ham. Go gourmet with goat cheese, caramelized onions, and a drizzle of balsamic glaze. My husband loves a BBQ chicken version with cheddar cheese and red onions, while my kids prefer a simple margherita style with fresh basil added after baking.

This recipe is perfect when you're craving pizza but want a lighter alternative. Enjoy every bite guilt-free!
Frequently Asked Questions
- → Can I use other cheese instead of mozzarella?
Yes! Try cheeses like cheddar, Parmesan, or a blend for different flavors and textures.
- → What can I substitute for pepperoni?
Use turkey pepperoni, cooked sausage, or even vegetarian options like sliced zucchini or bell peppers.
- → How can I make this dish vegetarian?
Replace the pepperoni with more veggies like spinach, tomatoes, or mushrooms, and skip any meat-based toppings.
- → Can I prepare this in an air fryer?
Certainly! Adjust the cooking time to about 10-12 minutes at 375°F, checking regularly to prevent burning.
- → What other sauces can I use instead of spaghetti sauce?
Pesto, Alfredo sauce, or even a simple garlic butter spread can be great alternatives for variety.