Grilled Portobello Sandwich with Roasted Red Pepper and Mozzarella

Details

Ingredients

• 4 slices tomato
• 1 red bell pepper
• salt and black pepper to taste
• ½ cup olive oil
• 4 portobello mushroom caps, cleaned
• 4 slices onion
• 4 Kaiser rolls, split
• 4 teaspoons mayonnaise
• 1 teaspoon roasted garlic, mashed into a paste
• 4 ounces buffalo mozzarella, thinly sliced
• 16 fresh basil leaves, divided