Grilled Portobello Mushroom Burgers with Avocado Mayo

Ingredients:

• 4 large Portobello mushrooms
• 2 tablespoons balsamic vinegar
• 2 tablespoons olive oil
• 1 teaspoon garlic powder
• Salt and pepper to taste
• 4 burger buns
• 1 ripe avocado
• 1 tablespoon lemon juice
• 1/4 cup mayonnaise
• Lettuce, tomato, and onion for topping

Instructions:

1. Preheat the grill to medium-high heat.2. Clean the Portobello mushrooms and remove the stems.3. In a small bowl, whisk together balsamic vinegar, olive oil, garlic powder, salt, and pepper.4. Brush the mushroom caps with the balsamic mixture.5. Place the mushrooms on the grill, gill side up.6. Grill for 5-7 minutes or until they are tender.7. While the mushrooms are grilling, prepare the avocado mayo.8. In a small bowl, mash the avocado with a fork.9. Stir in lemon juice and mayonnaise until smooth.10. Toast the burger buns on the grill.11. To assemble the burgers, spread the avocado mayo on the bottom bun, add lettuce, tomato, and onion.12. Place the grilled mushroom cap on top and add additional toppings if desired.13. Serve and enjoy!

This Grilled Portobello Mushroom Burger with Avocado Mayo is a delicious and healthy alternative to traditional beef burgers. The meaty texture of the Portobello mushrooms is perfectly complemented by the creamy and tangy avocado mayo. This recipe is also vegetarian and can be made vegan by using vegan mayonnaise. Serve with a side of fries or a salad for a complete meal. Enjoy this tasty and satisfying burger on your next barbecue or weeknight dinner.