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Grilled Portobello Mushroom Burger

Grilled Portobello Mushroom Burger

By Traeger Kitchen

This simple and easy-to-make grilled portobello burger recipe is a healthy and tasty alternative to the standard hamburger.

Prep Time

5 Minutes

Cook Time

15 Minutes




This recipe serves:


Units of Measurement:
6 portobello mushrooms
1 Teaspoon fresh thyme, chopped
1 Teaspoon fresh rosemary, chopped
To Taste fine sea salt
To Taste Black pepper
1 Teaspoon fresh oregano, chopped
3 Tablespoon Olive oil
6 brioche buns, or other burger buns, for serving
lettuce, for serving
Red onion, sliced, for serving
Ketchup, for serving
sliced tomato, for serving


  • 1

    When ready to cook, set the Traeger temperature to 450˚F and preheat with the lid closed for 15 minutes. For optimal results, set to 450° if available.

    450 ˚F / 232 ˚C

  • 2

    In a small bowl, add the fresh thyme, rosemary, oregano, olive oil, salt, and pepper and mix together. Rub over the mushrooms.

    • 6  portobello mushrooms

    • 1 Teaspoon fresh thyme, chopped

    • 1 Teaspoon fresh rosemary, chopped

    • To Taste fine sea salt

    • To Taste Black pepper

    • 1 Teaspoon fresh oregano, chopped

    • 3 Tablespoon Olive oil

  • 3

    Place the mushrooms discreetly on the grill grates. Close the lid, and cook for 5-7 minutes on each side.

  • 4

    Remove the portobello mushroom burgers from the grill. Build the burgers, using brioche buns, lettuce, tomato, onion, and ketchup, or with your favorite toppings. Enjoy!

    • 6  brioche buns, or other burger buns, for serving

    •  lettuce, for serving

    •  Red onion, sliced, for serving

    •  Ketchup, for serving

    •  sliced tomato, for serving

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