Are you looking to spice up your grilling game? Try out this portobello mushroom burger! Instead of bun, veggies are sandwiched between portobello mushrooms, which also makes it gluten-free! This is a great recipe to impress company – it’s so simple and uses very few ingredients, but the result is still so beautiful! What better option than a Portobello Mushroom Burger to eat on a gorgeous summer night?

Portobello Mushroom Burgers [Vegan]

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Cooking Time



  • 2 large portobello mushroom caps
  • 3 tablespoons balsamic vinegar
  • 1 tablespoon low-sodium soy sauce or gluten-free tamari
  • 1 teaspoon roasted garlic flakes (or option for fresh garlic)
  • 2 teaspoons dried basil
  • 1 teaspoon dried oregano
  • 1/2 teaspoon ground black pepper
  • 1 large tomato, sliced
  • 1 avocado, sliced
  • 1 cup pea shoots, sprouts
  • 1 tablespoon yellow mustard


  1. Slice the mushroom stems off (option to save for dressing) Slice about 1/2 inch of the mushroom top off (as if slicing a bun).
  2. Combine the balsamic, soy sauce or tamari, garlic, basil, oregano and pepper in a small bowl and mix well.
  3. Place the mushroom caps on a cookie sheet with foil and a little coconut oil (to prevent sticking).
  4. With a large spoon pour the marinade over each mushroom cap and let sit for about 10 minutes.
  5. Preheat the oven to 425°F.
  6. Bake the mushrooms for about 10 minutes. Check and see if they are don - otherwise flip them and bake another 10 minutes. I used a conventional oven and only cooked them 10 minutes on one side and they were all done.
  7. Place the bottom of the mushroom cap on a plate - add your choice of toppings and top with the top portion of the baked mushroom cap.

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Nutritional Information

Total Calories: 432 | Total Carbs: 43 g | Total Fat: 25 g | Total Protein: 13 g | Total Sodium: 652 g | Total Sugar: 19 g Per Serving: Calories: 216 | Carbs: 22 g | Fat: 13 g | Protein: 7 g | Sodium: 326 mg | Sugar: 10 g Note: The information shown is based on available ingredients and preparation. It should not be considered a substitute for a professional nutritionist’s advice.


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