Portabella Mushroom Sandwiches With Roasted Garlic Basil Mayo

Recipe by Happy Hippie
READY IN: 35mins




  • Preheat oven to 400 degrees.
  • Place garlic in small ovenproof dish and drizzle with olive oil and sprinkle with salt and pepper.
  • Cover tightly with foil and roast until tender, about 30 minutes.
  • Cool, peel and mash garlic.
  • Mix mayonnaise, basil, 1 teaspoon balsamic vinegar and mashed roasted garlic in small bowl. Do ahead Can be made1 day ahead. Cover and chill.
  • Melt 4 tablespoons butter in large skillet over medium-high heat.
  • Add mushrooms and toss to coat.
  • Drizzle remaining 3 tablespoons balsamic vinegar over and cook until tender, stirring often, about 5 minutes.
  • Season with salt and pepper. This step can be made 2 hours ahead of time. Let stand at room temperature.
  • Rewarm over low heat before continuing.
  • Preheat broiler.
  • Spread remaining 2 tablespoons butter over cut sides of bread.
  • Broil bread, buttered side up, until golden brown, about 2 minutes. Watch closelyto prevent burning.
  • Spread desired amount of garlic-basil mayonnaise over toasted sides of bread.
  • Arrange mushrooms in even layer over bottom half of bread.
  • Springles Parmesan cheese over.
  • Arrange tomato slices in single layer over cheese.
  • Cover with top half of bread.
  • Cut into 6 sandwiches and serve.