Grilled Portobello Mushroom Burger
Marinated portobello mushroom caps grilled until tender, topped with melted provolone, and served on toasted buns with fresh vegetables and mayonnaise.
Instructions
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Step 1
Whisk the olive oil, balsamic vinegar, soy sauce, garlic, salt, and black pepper together in a mixing bowl.
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Step 2
Place the mushroom caps in a shallow dish and pour the marinade over them. Turn to coat both sides, then leave to marinate for 15 minutes.
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Step 3
Rinse and dry the lettuce and tomatoes. Slice the tomatoes and red onion on a cutting board.
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Step 4
Preheat the grill to medium heat and clean the cooking grate.
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Step 5
Lift the mushrooms from the marinade and place them on the grill. Cook for 5 to 6 minutes per side, turning once, until browned and tender through the center.
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Step 6
Place one slice of provolone on each mushroom cap. Close the grill and cook until the cheese melts.
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Step 7
Place the buns cut-side down on the grill and toast until lightly browned.
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Step 8
Spread the mayonnaise over the toasted buns. Layer each bottom bun with lettuce, tomato, red onion, and a cheese-topped mushroom, then add the top bun and serve.
Nutrition (Estimated)
Food safety
Caution: low
Wash and dry the vegetables before serving. Keep cheese and mayonnaise refrigerated until needed, and refrigerate leftovers within 2 hours.
Risk factors
- hot grill surfaces
- unwashed raw produce
- perishable cheese and mayonnaise