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Marinated Portobello Mushroom Sandwich with Grilled Bell Pepper, gruyere cheese and mozzarella cheese
5 from 2 votes

Marinated Portobello Mushroom Sandwich with Grilled Bell Pepper, Melted Gruyere cheese, and Mozzarella.

Servings 2 people


Marinated Portobello Mushrooms:

  • 2 Portobello Mushrooms
  • ¼ cup Olive oil
  • salt/pepper to taste
  • 4 garlic cloves, , minced
  • 4 tablespoons balsamic vinegar
  • 1 teaspoon onion powder
  • optional: a pinch of thyme leaves

Grilled Bell Pepper:

  • 1 Red Bell Pepper
  • 1 Green Bell Pepper
  • 1 tablespoon olive oil
  • ½ teaspoon balsamic vinegar
  • sea salt/black pepper
  • optional: a pinch of dried basil or slivered fresh basil

To Assemble Sandwich:

  • 4 slices sourdough
  • 1 tablespoon salted butter
  • Guyerre cheese
  • Mozzarella cheese


Roasted Portobello Mushrooms:

  • In a large mixing bowl, combine olive oil, salt/pepper to taste, garlic, balsamic vinegar, onion powder and thyme leaves.
  • Clean mushrooms and remove stems. Wipe them with a damp cloth.
  • Marinate the mushroom in an olive oil mixture for at least 15 minutes.
  • Preheat the oven to 400°.
  • Place the mushrooms on a baking sheet.
  • Roast for about 10-15 minutes or until tender.

Grilled Bell Pepper:

  • In a mixing bowl, mix together bell pepper, olive oil, balsamic, sea salt/black pepper, basil.
  • Place the bell pepper on a grill over medium heat and cook for about 8-10 minutes or until crisp tender and until the skin is completely charred.
  • Remove the bell pepper from the heat, when cooled, remove the charred skin. Cut into small pieces and remove seeds. Optional: add salt/pepper according to your liking.

To Assemble the sandwich:

  • Assemble the sandwich with a slice of bread, a slice of Gruyere cheese, chopped portobello mushrooms, grilled bell pepper, a slice of Mozzarella cheese and another slice of bread.
  • In a cast iron or non-stick skillet over medium low heat, heat 1 tablespoon salted butter.
  • Place the sourdough sandwich in a skillet, press slightly until golden, flip carefully, add more butter if needed, cook the other side until golden and the cheese melts for about 3-4 minutes.
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