Ingredients

• 4 portobellos mushroom caps
• 0.25 cups balsamic vinegar
• 2 tablespoons olive oil
• 1 tablespoon minced garlic
• 1 teaspoon dried basil
• 1 teaspoon dried oregano
• salt and pepper to taste
• 4 , 1 ounce
• 4 hamburgers buns for serving
• lettuce and tomato slices for serving

Instructions

1. 1 Gather all ingredients.
2. 2 Place mushroom caps, smooth side up, in a shallow dish.
3. 3 Whisk together balsamic, oil, garlic, basil, and oregano in a small bowl. Season with salt and pepper.
4. 4 Pour vinaigrette over mushrooms. Let stand at room temperature for 15 minutes or so, turning twice. Preheat grill for medium-high heat.
5. 5 Brush grill grates with oil. Place mushrooms on grill, reserving marinade for basting.
6. 6 Grill until just tender, 5 to 8 minutes per side, brushing with marinade frequently.
7. 7 Top mushrooms with cheese.
8. 8 Continue grilling until cheese is melted, about 2 minutes.
9. 9 Serve in buns with lettuce, tomato, and red onion, or your favorite toppings. Enjoy!

Nutrition per serving