Portobello Mushroom Burger

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  • Prep Time

    5 mins

  • Cook Time

    10 mins

  • Total Time

    45 mins

  • Servings

    2 burgers

  • Calories

    140 kcal

Portobello Mushroom Burger

BEST Portobello Mushroom Burger! An easy balsamic marinade adds incredible flavor. Stuffed with cheese, rich, and savory. Even meat lovers cannot resist!

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Ingredients

Servings
  • 2 tablespoons soy sauce low-sodium
  • 2 tablespoons balsamic vinegar
  • 1 tablespoon extra-virgin olive oil
  • 3 cloves garlic minced
  • 1 ½ teaspoons Italian seasoning
  • ½ teaspoon black pepper ground
  • 4 portobello mushroom caps cleaned with underside stems and gills removed
  • 4 havarti cheese or swap provolone or baby Swiss, thin slices

For serving:

  • whole wheat hamburger buns or brioche hamburger buns
  • onion sliced, red
  • pesto
  • tomato sliced
  • arugula

Instructions

  1. In a large ziptop bag, combine the soy sauce, balsamic vinegar, oil, garlic, Italian seasoning, and black pepper. Add the mushroom caps and seal the bag, removing as much air as possible. Gently swish the marinade around the mushrooms, then place the bag in a shallow dish. Allow the mushrooms to sit at room temperature for at least 30 minutes while you prepare any desired toppings, or refrigerate for up to 1 hour. Turn the bag once or twice while the mushrooms sit so that they are coated evenly.
  2. Heat an outdoor grill or indoor grill pan to medium heat. Once hot, brush the grate lightly with oil to prevent sticking, or lightly spray the grill pan with nonstick spray.
  3. Remove the mushrooms from the marinade, shaking off any excess. Reserve the marinade in the bag for basting. Grill the mushrooms on both sides until tender, about 10 minutes total, brushing them with the marinade several times throughout.
  4. When the mushrooms are in their final minute of cooking, turn two of them so that their undersides (the ones that previously had the gills and stem) are facing up. Top each with 1 slice of cheese, then stack a second mushroom on top, gill-side down, so that the cheese is in the middle. Place a second slice of cheese on top. Reduce the heat to low and cook just until the cheese is melted.
  5. During the last few minutes of cooking, if desired, grill sliced onions and toast the buns. To assemble, spread a thin layer of pesto on the cut sides of each bun. Place the arugula on the bottom bun, then top with a grilled portobello mushroom stack, onion, and tomato. Add the top bun. Enjoy immediately.

Notes

  • TO STORE: Refrigerate the portobello mushroom stacks in an airtight storage container for up to 4 days. 
  • TO REHEAT: Rewarm the portobello mushroom stacks in a baking dish in the oven at 350°F or in the microwave. Assemble burgers as desired. 
  • TO FREEZE: Freeze portobello mushroom stacks in an airtight freezer-safe storage container for up to 2 months. Let thaw overnight in the refrigerator before reheating. 

Nutrition Information

Show Details
Serving 1burger, without bun or topping Calories 140kcal (7%) Carbohydrates 13g (4%) Protein 5g (10%) Fat 8g (12%) Saturated Fat 1g (5%) Cholesterol 2mg (1%) Potassium 695mg (15%) Fiber 3g (12%) Sugar 7g (14%) Vitamin A 25IU (1%) Vitamin C 1.4mg (2%) Calcium 49mg (5%) Iron 1.5mg (8%)

Nutrition Facts

Serving: 2burgers

Amount Per Serving

Calories 140 kcal

% Daily Value*

Serving 1burger, without bun or topping
Calories 140kcal 7%
Carbohydrates 13g 4%
Protein 5g 10%
Fat 8g 12%
Saturated Fat 1g 5%
Cholesterol 2mg 1%
Potassium 695mg 15%
Fiber 3g 12%
Sugar 7g 14%
Vitamin A 25IU 1%
Vitamin C 1.4mg 2%
Calcium 49mg 5%
Iron 1.5mg 8%

* Percent Daily Values are based on a 2,000 calorie diet.

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