Portobello Mushroom Pizza Recipe

Transform classic pizza into a healthy, low-carb option with these Portobello Mushroom Pizzas. Using large Portobello caps as the base, this recipe tops them with traditional pizza toppings, creating a delicious and satisfying meal without the guilt!


  • 2 large Portobello mushroom caps
  • ½ small onion, finely chopped
  • 1 clove of garlic, minced
  • ⅓ cup (80 ml) passata (strained tomatoes)
  • ⅓ cup (80 ml) chicken or vegetable stock
  • 1 tablespoon tomato paste
  • Pinch of oregano
  • Pinch of Italian parsley, chopped
  • 50g mozzarella cheese, shredded
  • Cooking oil spray
  • Salt and black pepper, to taste


  • 1 smoked chicken sausage, thinly sliced
  • 2 tablespoons sliced black olives
  • Chopped red onion


  1. Preheat Oven:
    • Preheat your oven to 375°F (190°C). This temperature is ideal for baking the mushrooms while melting the cheese perfectly.
  2. Prepare the Mushrooms:
    • Clean the Portobello mushroom caps by gently wiping them with a damp cloth. Remove the stems and scrape out the gills with a spoon to create more space for toppings.
  3. Cook the Sauce:
    • Heat a small skillet over medium heat. Spray with cooking oil. Sauté onion and garlic until translucent and fragrant.
    • Add passata, chicken or vegetable stock, and tomato paste to the skillet. Season with a pinch of oregano, salt, and pepper. Simmer the sauce until it thickens slightly, about 5-7 minutes.
  4. Assemble the Pizzas:
    • Place the mushroom caps on a baking sheet, gill-side up.
    • Spoon the sauce evenly into each mushroom cap. Sprinkle with shredded mozzarella.
    • Add the sliced chicken sausage, black olives, and red onion as toppings.
  5. Bake:
    • Bake in the preheated oven for about 15-20 minutes, or until the mushrooms are tender and the cheese is bubbly and golden.
  6. Garnish:
    • Remove from the oven and sprinkle with chopped Italian parsley for a fresh, herbaceous touch.
  7. Serve:
    • Let the mushroom pizzas cool slightly before serving to allow the flavors to meld together.


  • Passata Substitute: If you don’t have passata, you can use any smooth tomato sauce or even crushed tomatoes that you pulse in a blender.
  • Cheese Varieties: Feel free to experiment with different types of cheese such as provolone, cheddar, or a blend of Italian cheeses for varied flavors.
  • Additional Toppings: Customize your mushroom pizzas with any of your favorite toppings, like bell peppers, spinach, or even some chili flakes for a spicy kick.


Portobello Mushroom Pizzas offer a fantastic way to indulge in the comforting flavors of pizza while sticking to a healthier meal plan. They are perfect for a quick dinner, a unique appetizer for gatherings, or even as a fun cooking project with kids. Enjoy the rich flavors and satisfying textures of these delightful mushroom pizzas.