Grilled Portobello Mushroom Sandwich with Creamy Basil Mayonnaise

Enjoy a tasty and satisfying vegetarian sandwich with grilled portobello mushrooms marinated in balsamic vinegar and garlic, topped with a creamy basil mayonnaise spread, served on toasted ciabatta bread. This sandwich is perfect for a quick and easy lunch or dinner option.

Ingredients

• 4 large Portobello mushrooms
• 1/4 cup balsamic vinegar
• 2 cloves garlic, minced
• 1/2 cup mayonnaise
• 1/4 cup fresh basil leaves
• Salt and pepper to taste
• 4 ciabatta rolls, split and toasted
• Lettuce leaves and sliced tomatoes for serving

Directions

1. In a small bowl, whisk together balsamic vinegar, minced garlic, salt, and pepper. Place the Portobello mushrooms in a shallow dish and pour the marinade over them. Let marinate for 15 minutes.
2. In a food processor, blend mayonnaise and basil leaves until smooth. Season with salt and pepper to taste.
3. Preheat grill or grill pan over medium heat. Grill the marinated Portobello mushrooms for 4-5 minutes per side, or until tender and slightly charred.
4. Spread the basil mayonnaise on the toasted ciabatta rolls. Place a grilled Portobello mushroom on the bottom half of each roll. Top with lettuce leaves, sliced tomatoes, and the top half of the roll.
5. Serve the grilled Portobello mushroom sandwiches immediately and enjoy!

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