← BlogJune 28, 2026

How to Make the Perfect Sheet Pan Caprese Stuffed Portobello Mushrooms

Italian · Easy · 28 min · 4 servings

VegetarianGluten-Free
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Giant portobello mushroom caps stuffed with fresh mozzarella, cherry tomatoes, and fragrant basil roast until the cheese is bubbling and the mushrooms are tender and juicy. This elegant vegetarian dinner takes just minutes to prepare and delivers the classic flavors of a caprese salad in a hearty and satisfying form.

Why this recipe works

This Sheet Pan Caprese Stuffed Portobello Mushrooms recipe has been crafted to deliver restaurant-quality results in your home kitchen. At just 28 minutes from start to finish, it fits perfectly into a busy schedule without sacrificing flavor. Each serving comes in at 265 calories with 18g of protein, making it a balanced choice for any meal.

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What you will need

This recipe uses 6 simple ingredients that you can find at any grocery store:

  • 4 large portobello mushroom caps stems removed
  • 1.5 cups cherry tomatoes halved
  • 6 ounces fresh mozzarella ball sliced
  • 2 tablespoons olive oil
  • 0.25 cup fresh basil leaves
  • 2 tablespoons balsamic glaze

Step by step instructions

Step 1: Prep the Mushrooms

Preheat oven to 400 degrees F and line a sheet pan with parchment paper. Use a damp paper towel to clean the portobello caps then use a spoon to gently scrape out the dark gills from the undersides to create more room for the filling.

Step 2: Oil and Arrange

Brush both sides of each portobello cap generously with olive oil and season with salt and pepper. Place them gill side up on the prepared sheet pan, spacing them evenly across the pan so they do not overlap.

Step 3: Stuff and Roast

Fill each mushroom cap with halved cherry tomatoes and then layer fresh mozzarella slices on top. Roast at 400 degrees F for 15 to 18 minutes until the mushrooms are tender and releasing their juices and the cheese is melted and beginning to bubble.

Step 4: Garnish and Drizzle

Remove the pan from the oven and immediately scatter fresh basil leaves over the hot mushrooms. Drizzle with balsamic glaze just before serving and season with an extra pinch of flaky salt and cracked black pepper for the finishing touch.

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Easy substitutions

Missing an ingredient? Here are some swaps that work perfectly:

  • fresh mozzarella → shredded provolone or burrata broken into pieces work beautifully
  • balsamic glaze → a drizzle of good quality extra virgin olive oil and a squeeze of fresh lemon juice

Common mistakes to avoid

Watch out for these pitfalls that can affect your results:

  • Not removing the mushroom gills before filling which causes excess moisture to pool and make the filling watery
  • Overcooking the mushrooms beyond 18 minutes which turns them into a soggy collapsed texture rather than keeping them tender and meaty

Nutrition facts

Per serving: 265 calories, 18g protein, 14g carbs, 16g fat, 4g fiber.

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