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Recipe
Portobello Mushroom Blue Cheese Burgers with Lemon Aioli and Watercress

Portobello Mushroom Blue Cheese Burgers with Lemon Aioli and Watercress

  • Prep Time: 10 minutes
  • Total Time: 25 minutes, plus time for marinating
  • Yield: 4 servings

Ingredients

  • 1/4 cup balsamic vinegar
  • 1/4 cup olive oil
  • 1 tablespoon chopped garlic
  • 1 tablespoon chopped fresh rosemary
  • 4 large fresh portobello mushrooms, wiped clean and stems removed
  • 4 thick Vidalia onion slices
  • Salt
  • Freshly ground black pepper
  • 6 ounces Gorgonzola, thinly sliced
  • 4 large whole wheat hamburger buns or large kaiser rolls
  • Lemon Aioli
  • 1 bunch watercress, rinsed and dried, stems removed

Directions

  • In a small bowl, whisk together the vinegar, oil, garlic, and rosemary. Place the mushrooms in a large re-sealable plastic bag, or a baking dish, and cover with the marinade. Marinate for at least 1 hour and up to 2 hours.

  • Preheat the grill to medium.

  • Remove the mushrooms from the marinade and pat dry. Season both sides with salt and pepper, and place gill sides-down on the grill. Add the Vidalia onion slices to the grill. Cook the mushrooms and onion for 5 minutes, then turn. Arrange the cheese on the gills of each mushroom and continue to cook the mushrooms and onion until tender, about 6 to 8 minutes longer. Open the rolls and lightly toast on the grill, insides down.

  • Place 1 grilled mushroom inside each bun, top with a grilled onion, and garnish each to taste, with aioli. Divide the watercress among the 4 buns and serve immediately.