Description

These Caprese Stuffed Garlic Butter Portobellos are juicy, cheesy, and bursting with flavor. Tender mushrooms brushed with fragrant garlic butter, filled with fresh mozzarella and tomatoes, then broiled to melty perfection. Topped with basil and a balsamic glaze, they’re the perfect low-carb appetizer or meatless main!

Ingredients

For the Garlic Butter:
2 tablespoons butter
2 cloves garlic, crushed
1 tablespoon fresh parsley, chopped

For the Mushrooms:
5 to 6 large Portobello mushrooms, stems removed, washed and dried
5 to 6 fresh mozzarella balls, thinly sliced
1 cup grape or cherry tomatoes, thinly sliced
Fresh basil, shredded (for garnish)
Salt, to taste

For the Balsamic Glaze (optional):
1/4 cup balsamic vinegar
2 teaspoons brown sugar (optional)

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Instructions

Preheat the Oven
Set your oven to grill or broil on high. Position the oven rack in the middle of the oven.
Make the Garlic Butter
In a small saucepan or microwave-safe bowl, melt the butter with garlic and parsley until fragrant.
Prepare the Mushrooms
Pat the mushroom caps dry with a paper towel. Brush the underside of each cap with garlic butter and place them buttered side down on a baking tray.
Stuff the Mushrooms
Flip the mushrooms over. Brush the inside of each cap with the remaining garlic butter. Fill each mushroom cap with mozzarella slices and tomato rounds.
Broil to Perfection
Broil for about 8 minutes, or until the cheese is melted and slightly golden.
Make the Balsamic Glaze (optional)
In a small saucepan, bring balsamic vinegar and brown sugar to a boil. Reduce heat and simmer until thickened, about 5–8 minutes with sugar, or 12–15 minutes without.
Serve
Remove mushrooms from the oven. Top with fresh basil and drizzle with balsamic glaze. Season with salt to taste and serve warm.

Notes

Make sure mushrooms are completely dry before brushing to prevent sogginess.
For a dairy-free version, try stuffing with vegan cheese or marinated tofu.
Great served as a vegetarian main course, or a hearty side alongside grilled meats.
The balsamic glaze is optional but adds a delicious tangy-sweet finish.

Prep Time: 10 minutes
Cook Time: 8 minutes
Category: Appetizer, Main Dish
Method: Broil
Cuisine: Italian-Inspired