Jul 14 2026
RestaurantsFranchesco's RistorantePortobello Mushroom Recipe

Portobello Mushroom Recipe

Time1h
Serves2

Balsamic marinated Portobello mushroom, zucchini, tomato, and bell pepper served on a brioche bun. Paired with a side salad

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Ingredients

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Portobello Mushroom Sandwich

Method

Preparation and Assembly

  1. 1

    Marinate the Vegetables

    In a bowl, whisk together balsamic vinegar, olive oil, minced garlic, salt, and black pepper. Add Portobello mushrooms, sliced zucchini, chopped tomato, and sliced bell pepper. Toss to coat and let marinate for at least 30 minutes.

  2. 2

    Grill the Vegetables

    Preheat a grill or grill pan over medium-high heat. Remove the vegetables from the marinade (reserve the marinade) and grill the Portobello mushrooms for about 5-7 minutes per side until tender. Grill the zucchini, tomato, and bell pepper for about 3-4 minutes until they are charred and tender.

  3. 3

    Assemble the Sandwich

    Toast the brioche buns on the grill for 1-2 minutes until golden. Layer the grilled Portobello mushroom on the bottom half of the bun, followed by the zucchini, tomato, and bell pepper. Drizzle a little of the reserved marinade over the top before adding the top half of the bun.

  4. 4

    Serve

    Serve the Portobello mushroom sandwich with a side salad of your choice.

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