Portobello Big Mushroom Pizzas
Savor the bold flavors of Portobello Big Mushroom Pizzas, where hearty portobello caps replace traditional crusts. Topped with vibrant marinara, melty mozzarella, and fresh veggies, these low-carb delights offer a guilt-free, gluten-free pizza experience. Perfect for quick dinners or entertaining, they’re customizable, wholesome, and irresistibly delicious.
Why You’ll Love This Recipe:
Portobello Big Mushroom Pizzas are a game-changer for pizza lovers seeking a healthier alternative without sacrificing flavor. These pizzas swap heavy dough for nutrient-rich portobello mushrooms, delivering a satisfying, umami-packed bite. They’re quick to prepare, making them ideal for busy weeknights, yet elegant enough for a dinner party. The versatility allows you to customize toppings to suit any palate, from classic pepperoni to vibrant veggie medleys. Plus, they’re naturally low-carb and gluten-free, catering to various dietary needs while still pleasing a crowd. The combination of juicy mushrooms, gooey cheese, and aromatic herbs creates a mouthwatering experience that’s as nutritious as it is indulgent.
Recipe Tips and Tricks:
- Clean Mushrooms Gently: Use a damp paper towel to wipe portobellos instead of rinsing to prevent them from absorbing water.
- Remove Excess Moisture: Bake or grill mushroom caps briefly before topping to avoid sogginess.
- Enhance Flavor: Brush caps with olive oil and garlic for extra richness.
- Cheese Matters: Use freshly grated mozzarella for better melt and flavor.
- Don’t Overload: Keep toppings light to maintain the mushroom’s structure.
- Broil for Crispiness: Finish under the broiler for a golden, bubbly cheese topping.
- Herb Boost: Fresh basil or oregano added post-bake elevates aroma and taste.
Portobello Big Mushroom Pizzas

Hearty portobello mushrooms topped with marinara, mozzarella, and veggies create a low-carb, gluten-free pizza that’s quick, customizable, and delicious.
Ingredients
- 4 large portobello mushroom caps, gills removed
- 2 tablespoons extra virgin olive oil
- 1 cup marinara sauce
- 1 ½ cups shredded mozzarella cheese
- ½ cup sliced pepperoni (or vegan alternative)
- ½ cup diced bell peppers (red or green)
- ¼ cup thinly sliced red onion
- 1 teaspoon Italian seasoning
- ¼ cup grated Parmesan cheese (optional)
- Fresh basil leaves for garnish
Instructions
- Preheat Your Oven: Set your oven to 400°F (200°C) and line a baking sheet with parchment paper for easy cleanup.
- Prep the Mushrooms: Gently wipe portobello caps with a damp paper towel. Remove gills with a spoon for a smoother base.
- Brush with Oil: Lightly brush both sides of each mushroom cap with olive oil to enhance flavor and prevent sticking.
- Pre-Bake Mushrooms: Place caps stem-side up on the baking sheet and bake for 5 minutes to release excess moisture.
- Add Marinara: Spoon ¼ cup of marinara sauce onto each mushroom cap, spreading it evenly for a flavorful base.
- Layer Cheese: Sprinkle ⅓ cup of shredded mozzarella over the sauce on each cap for that gooey, melty goodness.
- Add Toppings: Arrange pepperoni, bell peppers, and onions evenly over the cheese. Customize with your favorite toppings here!
- Season It Up: Sprinkle Italian seasoning and optional Parmesan over each pizza for an extra flavor boost.
- Bake to Perfection: Bake for 12-15 minutes until the cheese is bubbly and golden. Broil for 1-2 minutes for extra crispiness.
- Garnish and Serve: Top with fresh basil leaves, let cool slightly, and enjoy your wholesome, delicious mushroom pizzas!
Notes
- Ensure mushrooms are not overcrowded on the baking sheet to promote even cooking.
- For a crispier texture, use a wire rack during baking to allow air circulation.
- Check for doneness by ensuring the cheese is fully melted and slightly browned.
- Serve with a side salad for a complete, balanced meal.
Nutrition Information
Yield
4Serving Size
1Amount Per Serving Calories 330Total Fat 24gSaturated Fat 9gTrans Fat 1gUnsaturated Fat 13gCholesterol 44mgSodium 901mgCarbohydrates 14gFiber 3gSugar 6gProtein 16g
The recipes and nutritional information on Yum Tonight are for informational purposes only. Always consult a healthcare provider for personalized dietary advice.
Ingredients Notes:
- Portobello Mushrooms: Choose large, firm caps with intact gills for the best “crust” structure. They’re rich in umami and nutrients like potassium.
- Marinara Sauce: Opt for a low-sugar, high-quality sauce or make your own with fresh tomatoes, garlic, and herbs for authentic flavor.
- Mozzarella Cheese: Fresh or low-moisture mozzarella melts beautifully; shred it yourself to avoid anti-caking agents.
- Olive Oil: Extra virgin olive oil adds richness and helps crisp the mushrooms.
- Toppings (Pepperoni, Bell Peppers, Onions): Select fresh, vibrant veggies and high-quality meats for optimal taste. Pre-cook denser toppings like sausage.
- Italian Seasoning: A blend of oregano, basil, and thyme enhances the pizza vibe; fresh herbs can substitute for brighter notes.
- Optional Parmesan: Grated Parmesan adds a nutty, salty kick to finish the dish.
Variations and Substitutions:
- Vegan Option: Swap mozzarella for dairy-free cheese and use plant-based pepperoni or extra veggies like zucchini or artichokes.
- Meat Lovers: Add cooked sausage, bacon, or prosciutto for a heartier pizza.
- Mediterranean Twist: Use feta, olives, and sun-dried tomatoes for a Greek-inspired flavor.
- Spicy Kick: Incorporate jalapeños, red pepper flakes, or spicy salami for heat.
- Pesto Base: Replace marinara with pesto for a vibrant, herby alternative.
- Low-Sodium: Choose no-salt-added marinara and reduce cheese for a heart-healthy version.
- Gluten-Free Toppings: Ensure all toppings, like sausage, are certified gluten-free if needed.
Storage Options:
- Refrigerator: Store leftovers in an airtight container for up to 3 days. Reheat in a 350°F oven for 5-7 minutes to maintain texture.
- Freezer: Assemble pizzas without baking, wrap tightly, and freeze for up to 1 month. Bake from frozen at 400°F for 15-20 minutes.
- Avoid Microwaving: Microwaves can make mushrooms soggy; opt for oven reheating.
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