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–+ servings
Portobello mushroom burger on a plate.
5 from 2 votes

Portobello Mushroom Burgers

These portobello mushroom burgers not only look like regular burgers, but they also have a similar texture and flavor. 
Prep 1 hour 20 minutes
Cook 17 minutes
Total 1 hour 37 minutes
Fat 19
Carbs 45
Protein 10
Yield 4

Ingredients

Marinade

Other Ingredients

  • 4 large portobello mushrooms destemmed, rinsed, and dried
  • ½ teaspoon kosher salt

Burger Ingredients

  • 1 large red onion sliced into rounds
  • 1 tablespoon olive oil
  • 1 teaspoon kosher salt
  • 4 sliced pepper jack cheese
  • 2 cups chopped greens arugula, spinach, romaine, etc.
  • 4 sweet onion burger buns

Sauce Ingredients

  • ½ cup garlic hummus
  • ½ cup ketchup

Instructions

  • Add all of the marinade ingredients to a large bowl and whisk to combine.
    A person is whisking oil into a white bowl.
  • Dredge the mushrooms in the marinade a few times to coat them. Let the mushrooms marinate for 1 hour, flipping them halfway through.
    Four chicken breasts in a baking dish with sauce.
  • Preheat the grill to 400ºF and clean the grates.
  • Place the onion rounds on a plate and drizzle them with olive oil and season them with salt and pepper.
  • When the grill is heated, transfer onions to the grill over indirect heat. Grill the onions for 10 minutes, flipping halfway.
    Red onion rings on a grill.
  • Then, transfer the mushrooms cap side down on the grill over indirect heat. Grill the mushrooms for 3 minutes on the cap side, flip, and grill them for an additional 2 minutes.
    Four grilled burgers in a pan on a white background.
  • Place a slice of cheese on the mushroom and close the grill for 1 minute, allowing the cheese to melt. Remove them from the grill.
    Four cheeseburgers in a grill pan on a white background.
  • While the mushrooms are cooking, combine the hummus and the ketchup in a bowl.
  • Assemble the burgers. Place the bottom of the burger bun on a plate, and transfer ½ cup of the greens onto the bun. Top the greens with the mushroom patty, and top the patty with grilled onion rounds.
    A plate of burgers with red onions and arugula.
  • Lastly, slather the top bun with 2-3 tablespoons of the hummus sauce to finish the burger. Serve immediately.
    Portobello mushroom burger on a plate.

Tips & Notes

  • Be sure to find large portobello mushrooms.
  • You can use your favorite burger fixings in place of our burger fixings.

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Nutrition Facts

Calories: 382kcal | Carbohydrates: 45g | Protein: 10g | Fat: 19g | Fiber: 5g | Sugar: 16g