Grilled Portobello Burger with Basil Mayo

Sandwich Thins® Rolls

Grilled Portobello Burger with Basil Mayo

  • 15 minutes
  • 2 servings
  • 15 minutes
  • 2 servings


  • 4 Brownberry 100% Whole Wheat Sandwich Thins rolls
  • 3 Tbsp light mayonnaise
  • 1/4 cup(s) basil, fresh, chopped
  • 1 tsp apple cider vinegar
  • 4 medium portobello mushroom(s), caps, equivalent to 1 pound
  • 4 spray(s) olive oil cooking spray
  • 1/8 tsp table salt, or to taste
  • 3/4 cup(s) roasted red peppers (packed in water), about 4 pieces
  • 1/8 tsp black pepper, or to taste
  • 4 slice(s) uncooked red onion(s)
  • 4 piece(s) lettuce


  1. Heat grill or grill pan.
  2. In a small bowl, combine basil, mayonnaise and vinegar; set aside.
  3. Lightly coat both sides of mushroom caps with cooking spray; season with salt and pepper.
  4. Grill mushrooms over medium-high heat, until just soft to the touch, about 6 minutes per side.
  5. To serve, split rolls and toast on grill.
  6. Spread a heaping teaspoon of basil mixture on top and bottom halves of rolls.
  7. Layer each bottom half with a mushroom, pepper, lettuce leaf and one onion slice; top with remaining half of roll and serve. 

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