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Caprese Stuffed Portobellos Recipe

4.8 from 132 reviews

This Caprese Stuffed Portobello recipe offers a delicious, low-carb twist on the classic Italian Caprese salad by stuffing large portobello mushroom caps with fresh mozzarella, grape tomatoes, and a fragrant garlic butter. Finished with a homemade balsamic glaze drizzle and fresh basil, this dish is a perfect appetizer or light meal that’s easy to prepare and packed with flavor.

Ingredients

Scale

Garlic Butter

  • 2 tablespoons butter
  • 2 cloves garlic, crushed
  • 1 tablespoon fresh parsley, chopped

Mushrooms

  • 56 large Portobello mushrooms, stems removed, washed and dried thoroughly
  • 56 fresh mozzarella cheese balls, sliced thinly
  • 1 cup grape or cherry tomatoes, sliced thinly
  • 1 pinch fresh basil, shredded to garnish

Balsamic Glaze

  • 1/4 cup balsamic vinegar
  • 2 teaspoons brown sugar (optional)

Instructions

  1. Preheat the oven: Set your oven to the grill/broil setting on high heat and arrange the oven shelf to the middle position to ensure even cooking.
  2. Prepare garlic butter: In a small saucepan or microwave-safe bowl, melt the butter together with crushed garlic and chopped parsley until the garlic becomes fragrant, infusing the butter with flavor.
  3. Brush mushrooms: Using a brush, coat the bottom side of each prepared portobello mushroom with the garlic butter, then place them buttered-side down on a baking tray.
  4. Stuff mushrooms: Flip the mushrooms so the caps face upward, brush any remaining garlic butter inside each cap, then layer the thin mozzarella slices and tomato slices evenly inside each mushroom cap.
  5. Grill and melt cheese: Place the baking tray in the oven under the grill/broiler, cooking for about 8 minutes until the mozzarella cheese melts and turns golden brown.
  6. Prepare balsamic glaze: While mushrooms cook, combine balsamic vinegar and brown sugar (if using) in a small saucepan and bring to a boil over high heat. Lower to a simmer and reduce for 5-8 minutes until thick and syrupy. Without sugar, simmer 12-15 minutes.
  7. Serve: Remove mushrooms from the oven, sprinkle shredded fresh basil on top, drizzle with the homemade balsamic glaze, and season with salt to taste before serving.

Notes

  • To properly dry portobello mushrooms, press a dry paper towel into each mushroom to gently absorb excess liquid. Skipping this step may cause mushrooms to release too much moisture during cooking.
  • Nutrition facts include the balsamic glaze.

Keywords: Caprese, stuffed portobello mushrooms, mozzarella, tomatoes, garlic butter, balsamic glaze, Italian appetizer, vegetarian