Description
Grilled Portobello Mushroom Burgers are hearty and juicy, delivering a savory, smoky flavor perfect for a satisfying meatless meal. Marinated portobello mushrooms are grilled until tender, topped with melted cheese, and served on toasted buns adorned with fresh lettuce, tomato, red onion, and a creamy mayonnaise sauce for a delicious vegetarian burger alternative.
Ingredients
Mushroom Marinade and Mushrooms
- 4 large portobello mushroom caps, stems removed
- 3 tbsp olive oil
- 2 tbsp balsamic vinegar
- 1 tbsp soy sauce
- 2 cloves garlic, minced
- 1 tsp Italian seasoning
- ½ tsp smoked paprika
- ½ tsp salt
- ¼ tsp black pepper
Burger Assembly
- 4 hamburger buns
- 4 slices provolone or Swiss cheese
- 1 tomato, sliced
- 4 lettuce leaves
- ½ small red onion, sliced
- ¼ cup mayonnaise
Instructions
- Clean the mushrooms: Gently wipe the portobello mushroom caps with a damp cloth to remove any dirt and pat dry to remove excess moisture.
- Prepare the marinade: In a shallow dish, whisk together olive oil, balsamic vinegar, soy sauce, minced garlic, Italian seasoning, smoked paprika, salt, and black pepper until well combined.
- Marinate the mushrooms: Place the cleaned mushrooms in the marinade, coating them evenly. Let them soak for 15 to 20 minutes to absorb the flavors.
- Preheat the grill: Heat your outdoor grill or grill pan on the stovetop to medium-high heat, ready for cooking.
- Grill the mushrooms: Cook the marinated mushrooms for 4 to 5 minutes on each side. Brush with extra marinade during grilling to keep them moist and flavorful.
- Melt the cheese: In the final minute of grilling, top each mushroom with a slice of provolone or Swiss cheese and allow it to melt.
- Toast the buns: Place the hamburger buns cut-side down on the grill for 1 to 2 minutes until lightly toasted.
- Assemble the burgers: Spread mayonnaise on both bun halves, then layer lettuce, tomato slices, red onion, and the grilled mushroom caps with melted cheese.
- Serve: Serve the burgers immediately while warm for the best taste and texture.
Notes
- Choose large, firm portobello mushroom caps similar in size to your buns for best presentation and balance.
- Enhance your burger with optional add-ons like sliced avocado, roasted peppers, or caramelized onions for extra flavor complexity.
- Use vegan mayonnaise and plant-based cheese alternatives to make this burger vegan-friendly.
- Prep Time: 20 minutes
- Cook Time: 10 minutes
- Category: Lunch, Dinner, Burgers
- Method: Grilling
- Cuisine: American
