Jul 14 2026
RestaurantsAssaggio KailuaGrilled Portobello Mushroom With Eggplant Recipe

Grilled Portobello Mushroom With Eggplant Recipe

Inspired by Assaggio Kailua
Time45m
Serves4

Grilled Whole Portobello Mushroom with Diced Eggplant, Red Roasted Pepper, Onion, Sweet Basil in Balsamic Vinegar.

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Ingredients

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Mushroom Preparation

Vegetable Filling

Method

Mushroom Preparation

  1. 1

    Clean the Portobello Mushrooms

    Gently wipe the Portobello mushrooms with a damp cloth to remove any dirt. Remove the stems and gills using a spoon.

  2. 2

    Marinate the Mushrooms

    In a bowl, whisk together balsamic vinegar, olive oil, salt, and black pepper. Place the cleaned mushrooms in the marinade and let them sit for at least 15 minutes, turning occasionally.

Vegetable Filling

  1. 3

    Prepare the Vegetables

    Dice the eggplant, red roasted pepper, and onion into small pieces. Mince the garlic cloves.

  2. 4

    Cook the Vegetable Filling

    In a skillet, heat 1 tablespoon of olive oil over medium heat. Add the diced eggplant, onion, and garlic. Sauté for about 5 minutes or until the eggplant is tender. Add the diced red roasted pepper and fresh basil. Season with salt and black pepper. Cook for an additional 2-3 minutes until everything is heated through.

Grilling

  1. 5

    Preheat the Grill

    Preheat your grill to medium-high heat.

  2. 6

    Grill the Mushrooms

    Place the marinated Portobello mushrooms on the grill, gill side up. Grill for about 5-7 minutes, then flip them over and grill for another 5-7 minutes until tender and grill marks appear.

  3. 7

    Assemble the Dish

    Remove the grilled mushrooms from the grill. Spoon the vegetable filling into each mushroom cap. Serve immediately, garnished with additional fresh basil if desired.

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