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Portabella Mushroom Burgers

mushroom burgers

Portobello Mushroom Swiss Burger Recipe

Easy grilled mushroom burgers recipe with portabellas marinated in an Italian herb vinaigrette, topped with swiss cheese, tomatoes, and spring greens on a toasted whole wheat bun. Try it and tell us what you think at the bottom of this page.

Grilled Portabella Mushroom Burgers Recipe

(Serves 4)
Time: Under 1 Hour

  • 1/4 cup balsamic vinegar
    Grilling Tip:
    Go for the good stuff (over $5). Cheaper versions tend to be sour and overpowering, while quality balsamic vinegar is sweeter and you won't need as much which will make up for the added price.
  • 2 tablespoons extra virgin olive oil

  • 1 tablespoon chopped fresh basil

  • 1 teaspoon dried oregano

  • 3 garlic cloves, minced

  • Salt and pepper (to taste)

  • 4 portabella mushroom caps

  • 1 large white onion, cut into 1/2 inch thick slices

  • Swiss Cheese, sliced

  • Tomato, sliced

  • Spring greens (or lettuce)

  • 4 Whole wheat burger Buns, split and toasted (crusty French baguette bread works well too)

  • Grilling Instructions for Portobello Mushroom Swiss Burgers Recipe

    In a small food processor or blender, combine the balsamic vinegar, olive oil, chopped fresh basil, oregano, minced garlic, salt and pepper. Pulse for 10 seconds.

    Grilling Tip:
    Blending rather than whisking your marinades prevents one single flavor from dominating the marinade (usually olive oil).

    Pour the basil, oregano, and garlic vinaigrette into a large resealable plastic bag. Add the portabella mushroom caps and onion slices. Seal and turn to coat. Open, squeeze out excess air, reseal. Allow to rest at room temperature for 10 minutes, turning twice.

    Grilling Tip:
    Portobella mushrooms are like sponges. So less is more when it comes to marinating them. This avoids the flavors from becoming too overpowering and creating sour, slimy portabello mushrooms.

    Meanwhile, preheat your grill to medium-high heat (400 degrees F). The grill is ready when you can only keep the palm of your hand two inches above the grate for about 3 seconds before pulling away.

    Lightly oil grate and place onions and the mushroom burgers, smooth side up, on the grill (save leftover marinade for basting). Grilled portabella mushrooms take about 6 - 8 minutes per side minutes or until tender (onions will take a few minutes longer). Brush everything frequently with reserved marinade. Top each grilled portobello mushroom with a slice of swiss cheese during the last 2 minutes of grilling.

    Serve everything hot off the grill between two slices of toasted burger buns with some sliced tomato and spring greens to make great tasting grilled portobello mushroom swiss burgers.

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