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Grilled Portobello with Basil Mayonnaise Sandwich

Grilled Portobello with Basil Mayonnaise Sandwich

Rated as 4.68 out of 5 Stars
Recipe By:Rotorwife
"A light vegetarian sandwich with great flavor that is perfect for summer. You can use just about any type of bread but Kaiser rolls or burger buns are best. I like to serve this with grilled squash and a glass of white wine!"

Ingredients

  • 1/3 cup balsamic vinegar
  • 1/4 cup olive oil
  • 1 tablespoon minced garlic
  • 6 portobello mushroom caps
  • 1/2 cup mayonnaise
  • 1 tablespoon Dijon mustard
  • 1 teaspoon lemon juice
  • 2 tablespoons chopped fresh basil
  • 6 kaiser rolls, split, toasted
  • 1 tablespoon butter
  • 6 leaves lettuce
  • 6 tomato slices

Directions

  1. Preheat an outdoor grill for medium heat, and lightly oil the grate. Whisk together the balsamic vinegar, olive oil, and garlic in a small bowl.
  2. Arrange the portobello mushrooms gill-side up on a tray or baking sheet. Brush the mushrooms with some of the vinegar mixture, and allow to marinate for 3 to 5 minutes.
  3. Place the marinated mushrooms on the preheated grill, gill-side down. Grill mushrooms until tender, brushing both sides of the mushrooms with the remaining marinade, about 4 minutes on each side.
  4. Mix the mayonnaise, dijon mustard, lemon juice, and basil in a small bowl. Butter the toasted kaiser rolls, then spread with the mayonnaise mixture. Divide the mushrooms, lettuce, and tomato slices evenly to make 6 sandwiches.