Caprese Stuffed Portobellos

Garlic butter smothered and bursting with flavor, these Caprese Stuffed Portobellos are loaded with fresh mozzarella cheese and juicy grape tomatoes, then finished with a drizzle of rich balsamic glaze. They're the ultimate way to enjoy caprese stuffed mushrooms with a bold, mouthwatering twist.

If you love garlic butter mushrooms, this recipe takes them to the next level by pairing them with the classic Italian combination of tomato, mozzarella, and basil. These caprese portobello mushrooms are not only simple to make but also utterly irresistible, good as an appetizer, side, or even a light main dish. If you're putting together a spread of easy starters, they also sit beautifully alongside a Cheese Ball Antipasto for a simple antipasto-style platter.

What Makes This Recipe Good

These Caprese Stuffed Portobellos bring together a reliable of two worlds: rich, garlicky mushrooms and the fresh, vibrant flavors of a traditional Caprese salad. The melted mozzarella over juicy tomatoes creates a creamy, tangy bite that perfectly complements the earthy portobello base. A drizzle of balsamic glaze ties everything together for that irresistible sweet-savory finish.

What makes these caprese stuffed mushrooms stand out is how versatile and satisfying they are. Whether you serve them as caprese portobello mushrooms for a light lunch, a flavorful side dish, or even as vegetarian-friendly main course, they never disappoint. This easy recipe transforms simple ingredients into a dish that feels both rustic and elegant.

What Goes Into Caprese Stuffed Portobellos

A handful of simple, fresh ingredients make these Caprese Stuffed Portobellos shine. The garlic butter gives the mushrooms their irresistible richness, while mozzarella, tomatoes, and basil bring all the classic Caprese flavors to life.

• Portobello Mushrooms: Large, meaty mushrooms act as the base, sturdy enough to hold all the cheesy, garlicky goodness.
• Fresh Mozzarella: Creamy slices of mozzarella melt beautifully into the mushrooms, giving you that signature Caprese indulgence.
• Grape Tomatoes: Sweet and juicy tomatoes balance the richness of the cheese and butter with a burst of freshness.
• Balsamic Glaze: A drizzle of tangy, slightly sweet balsamic glaze elevates the flavors and ties the dish together.

Note: Please see recipe card at the bottom for a full list of ingredients with measurements.

On the stove

1. Preheat the Oven: Set your oven to the grill or broil setting on high heat and position the oven rack in the middle to ensure even cooking.

1. Prepare the Garlic Butter: In a saucepan, melt butter with garlic and parsley until fragrant, creating a rich base for the mushrooms.

1. Brush the Mushrooms: Coat the bottoms of each portobello cap with the garlic butter and place them buttered-side down on a baking tray.

1. Stuff the Filling: Flip the mushrooms, brush the insides with the remaining garlic butter, then layer in mozzarella slices and tomatoes.

1. Broil Until Golden: Place tray in the oven and broil until the cheese is bubbling, melted, and lightly golden.

1. Finish and Serve: Top with fresh basil, drizzle with balsamic glaze, season with salt to taste, and serve immediately while warm.

To balance the rich flavors of these Caprese Stuffed Portobellos, try pairing them with something a little surprising from the sweet side of the menu. A chilled glass of Frozen Margarita Slushy adds a refreshing, fruity note that cuts through the garlicky mushrooms beautifully. It also pairs amazingly with this loaded shrimp guacamole if you're putting together a light appetizer spread.

Recipe FAQ's

Large portobello mushrooms are best because they're sturdy and create a natural “bowl” for the filling, but you can also make mini versions using large white or cremini mushrooms.

No, the mushroom skin is edible and adds texture. Just clean them well and pat dry before adding the filling.

Make sure the mushrooms are thoroughly dried before brushing with garlic butter, and avoid overbaking so they hold their meaty texture.

WATCH US MAKE Caprese Stuffed Portobello Mushrooms RIGHT HERE!

What you need

• 2 tablespoons butter
• 2 cloves garlic crushed
• 1 tablespoon fresh parsley chopped
• 5-6 large Portobello mushrooms stem removed, washed and dried thoroughly with a paper towel
• 5-6 fresh mozzarella cheese balls, sliced thinly
• 1 cup grape or cherry tomatoes, sliced thinly
• 1 pinch fresh basil shredded to garnish
• 1/4 cup balsamic vinegar
• 2 teaspoons brown sugar optional

Method

1. Preheat oven to grill/broil settings on high heat. Arrange oven shelf to the middle of your oven.
2. Combine all of the Garlic Butter ingredients together in a small saucepan (or microwave safe bowl), and melt until garlic is fragrant. Brush the bottoms of each mushroom and place them, buttered side down, on a baking tray.
3. Flip and brush any remaining garlic over the insides of each cap. Fill each mushroom with the mozzarella slices and tomatoes, and grill/broil until cheese has melted and golden in colour (about 8 minutes).
4. To serve, top with the basil, drizzle with the balsamic glaze and sprinkle with salt to taste.
5. (If making from scratch, prepare while mushrooms are in the oven.) Combine sugar (if using) and vinegar in a small saucepan over high heat and bring to the boil. Reduce heat to low; allow to simmer for 5-8 minutes or until mixture has thickened and reduced to a glaze. (If not using sugar, allow to reduce for 12-15 minutes on low heat).