Grilled Portobello with Basil Mayonnaise Sandwich
Easy 105 min

Grilled Portobello with Basil Mayonnaise Sandwich

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Prep

24 min

Cook

81 min

Total

105 min

Ingredients (12)

⅓ cup balsamic vinegar g
¼ cup olive oil g
1 tablespoon minced garlic g
6 portobello mushroom caps g
½ cup mayonnaise g
2 tablespoons chopped fresh basil g
1 tablespoon Dijon mustard g
1 teaspoon lemon juice g
6 kaiser rolls, split, toasted g
1 tablespoon butter, softened, or as needed g
6 leaves lettuce g
6 tomato slices g

Nutrition

kcal
fat
carbs
protein

Instructions

1

Preheat an outdoor grill for medium heat and lightly oil the grate.

2

Whisk vinegar, oil, and garlic together in a small bowl.

3

Arrange mushrooms on a baking sheet with the gills facing up; brush with about 2/3 of the marinade and let sit for 3 to 5 minutes.

4

Transfer mushrooms to the preheated grill with the gills facing down; grill, basting occasionally with remaining marinade, until tender, about 4 minutes per side.

5

While the mushrooms are cooking, mix mayonnaise, basil, Dijon, and lemon juice together in a small bowl. Butter toasted rolls, then spread with mayonnaise mixture.

6

Remove mushrooms from the grill and place on bottom buns. Top with lettuce, tomatoes, and top buns.