A large portobello cap makes a sturdy base for pizza toppings. These are roasted with marinara, mozzarella, sliced pepperoni, oregano and garlic powder until the cheese bubbles and the mushrooms are tender. They take 30 minutes in total, 10 of them prep, and each pizza has 8 grams of carbohydrates.
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What Goes on Them
The card has the amounts. This is the role of each ingredient.
- Portobello caps (8 large): the base. They are hearty enough to hold the toppings.
- Marinara sauce (1 cup): about 2 tablespoons per cap. It adds flavor and moisture. A good sauce pairs well with the earthy mushrooms.
- Shredded mozzarella (1 ½ cups): the usual pizza cheese, melted and bubbly.
- Sliced pepperoni (½ cup): the savory, slightly spicy layer.
- Dried oregano, garlic powder, salt and pepper: the seasonings that go on last, before baking.
- Fresh basil (optional): a garnish for color.
Making the Pizzas
Heat the oven to 400°F (200°C). Wipe the caps with a damp paper towel, which cleans them without washing out their flavor. Remove the stems and gently scrape out the gills with a spoon, which leaves a little bowl for the toppings.
Set the caps stem side up on a baking sheet lined with parchment paper. Spread about 2 tablespoons of marinara on each, cover with mozzarella, add the pepperoni and sprinkle on the oregano, garlic powder, salt and pepper. Bake for 15 to 20 minutes, until the cheese is melted and bubbly and the mushrooms are tender. Let them cool for a few minutes, then add basil if you like.
Getting the Texture You Want
Ovens run differently, so watch the pizzas as they bake. For firmer mushrooms, bake a little less. For softer ones, leave them in longer. If you can, use a good marinara and fresh mozzarella.
Ways to Change Them

- Vegetarian: replace the pepperoni with sliced bell peppers, onions or olives.
- Other meats: spicy sausage or grilled chicken instead of pepperoni.
- Other cheeses: provolone is slightly sharper, feta is tangy, gouda also works, and mixing cheeses is fine.
What to Serve With Them
A side salad with an olive oil dressing, made with leafy greens, cherry tomatoes and cucumbers, adds a crisp contrast. Zucchini noodles or cauliflower rice are low-carb sides. For a drink, try sparkling water with a slice of lemon, or herbal tea.
Equipment
You need a baking sheet, parchment paper (aluminum foil works if you run out), a spoon for scraping the gills and measuring cups. A large oven-safe dish can replace the baking sheet.
Nutrition per Pizza
Each pizza has about 250 calories, 18 grams of fat (8 grams saturated), 8 grams of carbohydrates, 2 grams of fiber, 3 grams of sugar, 15 grams of protein and 600 milligrams of sodium.
FAQ
What toppings work besides pepperoni?
Bell peppers, onions or spinach make a vegetarian version, and crumbled feta or goat cheese gives a different flavor.
Can I make them ahead?
Yes. Assemble them, cover tightly with plastic wrap or foil and refrigerate. Bake when you are ready to serve.
How should leftovers be stored?
Keep them in an airtight container in the refrigerator for up to 3 days. Reheat in a 350°F (175°C) oven for about 10 minutes, until heated through.
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Written and edited by The Foodie Yummy Kitchen Team
The Foodie Yummy Kitchen Team writes and edits the recipes on Foodie Yummy: classic American potluck salads, holiday sides and easy comfort food, with a few low-carb options. Every recipe lists exact quantities, numbered steps and a printable recipe card, plus notes on swaps, storage and make-ahead timing. Spot a problem with a recipe? Tell us through the contact page and we will correct it. About us
Portobello Pizzas: Discover a Delicious Mushroom Twist!
Ingredients
Instructions
Preheat your oven to 400°F (200°C).
Clean the portobello mushroom caps by wiping them with a damp paper towel. Remove the stems and gently scrape out the gills with a spoon to create space for toppings.
Place the mushroom caps, stem side up, on a baking sheet lined with parchment paper.
Spread about 2 tablespoons of marinara sauce on each mushroom cap.
Sprinkle shredded mozzarella cheese evenly over the sauce on each cap.
Top each with sliced pepperoni, then sprinkle with dried oregano, garlic powder, salt, and black pepper.
Bake in the preheated oven for 15-20 minutes, or until the cheese is melted and bubbly, and the mushrooms are tender.
Remove from the oven and let cool for a few minutes. Garnish with fresh basil leaves if desired.
Serve warm and enjoy your delicious portobello pizzas!
Notes
For a vegetarian option, substitute the pepperoni with sliced bell peppers, onions, or olives.
Experiment with different cheeses like provolone or feta for a unique flavor twist.
Nutrition
| Serving Size | 1 pizza |
|---|---|
| Calories | 250 calories |
| Sugar Content | 3g |
| Sodium Content | 600mg |
| Fat Content | 18g |
| Saturated Fat Content | 8g |
| Unsaturated Fat Content | 10g |
| Trans Fat Content | 0g |
| Carbohydrate Content | 8g |
| Fiber Content | 2g |
| Protein Content | 15g |
| Cholesterol Content | 40mg |
