Grilled Portobello with Basil Mayonnaise Sandwich

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Grilled Portobello with Basil Mayonnaise Sandwich

Prep 10 m

Cook 10 m

Ready In 20 m

6 Servings

412 Calories


"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!"

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  1. 1/3 cup balsamic vinegar

  2. 1/4 cup olive oil

  3. 1 tablespoon minced garlic

  4. 6 portobello mushroom caps

  5. 1/2 cup mayonnaise

  6. 1 tablespoon Dijon mustard

  7. 1 teaspoon lemon juice

  8. 2 tablespoons chopped fresh basil

  9. 6 kaiser rolls, split, toasted

  10. 1 tablespoon butter

  11. 6 leaves lettuce

  12. 6 tomato slices


  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.

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