Recipes Main Dishes Sandwich Recipes Grilled Portobello with Basil Mayonnaise Sandwich 4.7 (132) 101 Reviews 8 Photos This grilled portobello sandwich is perfect for summer. You can use just about any type of bread but kaiser rolls or burger buns are the best. I like to serve this with grilled squash and a glass of white wine. Recipe by Rotorwife Updated on December 14, 2022 Save Saved! View All Saved Items Rate Print Share Share Tweet Pin Email Add Photo 8 8 8 8 Prep Time: 20 mins Cook Time: 10 mins Additional Time: 5 mins Total Time: 35 mins Servings: 6 Yield: 6 sandwiches Jump to Nutrition Facts Ingredients ⅓ cup balsamic vinegar ¼ cup olive oil 1 tablespoon minced garlic 6 portobello mushroom caps ½ cup mayonnaise 2 tablespoons chopped fresh basil 1 tablespoon Dijon mustard 1 teaspoon lemon juice 6 kaiser rolls, split, toasted 1 tablespoon butter, softened, or as needed 6 leaves lettuce 6 tomato slices Directions Preheat an outdoor grill for medium heat and lightly oil the grate. Whisk vinegar, oil, and garlic together in a small bowl. 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. Transfer mushrooms to the preheated grill with the gills facing down; grill, basting occasionally with remaining marinade, until tender, about 4 minutes per side. 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. Remove mushrooms from the grill and place on bottom buns. Top with lettuce, tomatoes, and top buns. Editor's Note: Nutrition data for this recipe includes the full amount of marinade ingredients. The actual amount consumed will vary. I Made It Print Nutrition Facts (per serving) 412 Calories 28g Fat 36g Carbs 8g Protein Show Full Nutrition Label Hide Full Nutrition Label Nutrition Facts Servings Per Recipe 6 Calories 412 % Daily Value * Total Fat 28g 36% Saturated Fat 5g 25% Cholesterol 12mg 4% Sodium 417mg 18% Total Carbohydrate 36g 13% Dietary Fiber 4g 15% Total Sugars 8g Protein 8g Vitamin C 19mg 93% Calcium 73mg 6% Iron 3mg 15% Potassium 919mg 20% * Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs. ** Nutrient information is not available for all ingredients. Amount is based on available nutrient data. (-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption. Powered by the ESHA Research Database © 2018, ESHA Research, Inc. All Rights Reserved