Blue Cheese Portobello Burgers

Total Time: 1 hr Preparation Time: 20 mins Cook Time: 40 mins

Ingredients

• 3 tablespoons extra virgin olive oil, divided
• 1 tablespoon balsamic vinegar
• 3 garlic cloves, minced
• 4 large portabella mushrooms, stems removed
• 3 cups red onions, thinly sliced
• 2 tablespoons water
• 1/4 cup ruby port
• 1/2 teaspoon salt, divided
• 1/4 teaspoon ground pepper, divided
• 1/2 cup reduced-fat blue cheese, crumbled
• 4 whole wheat hamburger buns
• 1 cup baby arugula
• 1 tomato, 4 thick slices

Recipe

• 1 whisk 2 tablespoons oil, vinegar and garlic in a bowl. brush the mixture all over mushrooms and let stand for 30 minutes.
• 2 meanwhile, heat the remaining 1 tablespoon oil in a large skillet over high heat. add onion and cook, stirring frequently, until beginning to brown, about 5 minutes. reduce heat to low, add water and cook, stirring frequently, until the onion is browned and very soft, about 15 minutes. add port; cook, stirring occasionally, until mostly evaporated, about 3 minutes more. stir in 1/4 teaspoon salt and 1/8 teaspoon pepper. remove from the heat and cover.
• 3 preheat grill to medium.
• 4 sprinkle the mushrooms with the remaining 1/4 teaspoon salt and 1/8 teaspoon pepper. grill, gill-side down, for 5 minutes. turn over and top each with 2 tablespoons cheese. grill until the mushrooms are tender, 4 to 5 minutes more.
• 5 toast buns. divide the onions among the mushrooms. serve (cheese-side up) on buns with arugula and tomato.