The meaty texture and bold taste of marinated portobellas make them a perfect choice for this hearty sandwich. Enjoy with a belgian ale beer or a glass of Sangiovese wine.

Grilled Portobella Burgers

Place mushrooms, smooth side up, in a baking dish. In a small bowl, whisk together 1/4 cup olive oil, vinegar, garlic, oregano, salt and pepper; pour over mushrooms. Let stand at room temperature for 15 minutes, turning mushrooms every 5 minutes.

Spray grill grate or grill pan with nonstick grill spray; preheat to medium-high heat.

Lightly brush each side of each bread slice with 1/2 teaspoon olive oil. Place bread on grill or grill pan; toast on both sides. Remove and set aside.

Remove mushrooms from marinade and place on grill or in grill pan; cook for 4 to 5 minutes per side or until tender, brushing with marinade during grilling. 

To assemble each sandwich, place 2 cheese slices on each of 4 slices of bread; top each with a mushroom and one-fourth of the avocado, tomato and sprouts. Spread 1 tablespoon pesto on each of the remaining 4 slices of bread and place pesto-side-down on top of sandwich.