Portobello Mushroom Burger

Are you looking for a delicious and satisfying vegetarian alternative to a traditional burger? Look no further than the Portobello Mushroom Burger! This hearty and flavorful dish is perfect for those looking to incorporate more plant-based meals into their diet without sacrificing taste. In this blog post, we will explore the key ingredients and steps to create the ultimate Portobello Mushroom Burger. From marinating the mushrooms to assembling the perfect toppings, we will guide you through each step to ensure a mouth-watering meal that will satisfy even the most dedicated meat lover. So, let’s dive in and discover how to make this delicious and nutritious dish!


  • 4 large portobello mushrooms
  • 4 burger buns
  • 1 red onion, sliced
  • 4 slices of cheese (optional)
  • 1 tablespoon olive oil
  • Salt and pepper to taste
  • 1/4 cup balsamic vinegar
  • 2 cloves of garlic, minced
  • 1 teaspoon dried thyme
  • 1 teaspoon paprika
  • 1 tablespoon soy sauce


  1. Preheat your grill or grill pan over medium heat.
  2. Clean the portobello mushrooms by wiping them with a damp cloth. Remove the stems.
  3. In a small bowl, mix together the olive oil, balsamic vinegar, garlic, thyme, paprika, and soy sauce.
  4. Brush the mushroom caps with the marinade mixture, making sure to coat both sides.
  5. Place the mushrooms on the grill, gill side down. Cook for about 5 minutes, then flip and cook for another 5 minutes.
  6. While the mushrooms are cooking, grill the red onion slices until they are caramelized.
  7. If you’re adding cheese to your burger, place a slice on top of each mushroom during the last minute of cooking to melt.
  8. Toast the burger buns on the grill for a minute or two until they are lightly browned.
  9. Assemble your burger by placing a mushroom on the bottom bun, topping with grilled onions, and adding the top bun.
  10. Serve hot and enjoy your delicious portobello mushroom burger!


  • Marinate the mushrooms for at least 30 minutes to allow the flavors to penetrate.
  • You can customize your burger with additional toppings like avocado, lettuce, or tomato.
  • For a gluten-free option, use lettuce wraps instead of burger buns.
  • Experiment with different marinades and seasonings to create unique flavor profiles.

Benefits of Portobello Mushroom Burgers:

Portobello mushrooms are a great meat substitute for vegetarians and vegans, as they have a meaty texture and are packed with flavor. They are also low in calories and fat, making them a healthy alternative to traditional beef burgers. Additionally, portobello mushrooms are a good source of antioxidants, vitamins, and minerals, making them a nutritious choice for any diet.