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WOW Recipe: Juicy Cheese Burgers on Portobello Mushroom “Buns”

Updated: May 30, 2020

Prep time: 25 to 30 minutes  Cooking time: 25 to 30 minutes

Yields: 4 burgers  


Caramelized Onions:

1 tablespoon - organic extra-virgin coconut oil

1 - large red onion, thinly sliced

2 - garlic cloves, minced ½ cup - organic chicken broth

2 tablespoons - balsamic vinegar

Portobello “Buns”:

8 large - Portobello mushroom caps

1½ tablespoons - organic, extra-virgin coconut oil

2 - garlic cloves, crushed to a puree through a garlic press or with a mortar and pestle


Freshly ground black pepper


1 pound - organic ground bison, beef, turkey, or lamb

1 tablespoon - Dijon mustard

1 to 2 teaspoons - salt

1 teaspoon - freshly ground black pepper

½ cup - almond cheese cubes, cut to a size of about ¼ inch

Organic Fixings:

Dijon mustard

unsweetened ketchup

fresh tomato salsa

sliced avocado



leafy greens, such as arugula, red-leaf lettuce, or butter lettuce

sliced tomato

fried organic egg


Preheat a grill or broiler to high heat.

For the caramelized onions, heat a sauté pan over medium heat. Add the oil and, as soon as it is hot enough to swirl easily in the pan, add the onion and garlic, then stir in the chicken broth and balsamic vinegar. Cover and cook, stirring occasionally, for 15 minutes. Remove the lid and continue cooking, stirring occasionally, until all the liquid has evaporated, 5 to 10 minutes longer. Set aside.

To prepare the Portobello buns, rub the caps on both sides with coconut oil, then with the pureed garlic. Season lightly but evenly on both sides with salt and pepper. Set aside.

In a bowl, with clean hands, thoroughly combine all of the burger ingredients, including the caramelized onions. Form the mixture into 4 burger patties about the same diameter as the mushroom caps and about 1 inch thick.

Place the burgers on the grill or under the broiler and cook for 4 to 6 minutes per side, depending on how you prefer your burger to be cooked.

At the same time, cook the mushroom caps on the grill or under the broiler until heated through, tender, and nicely browned, 4 to 5 minutes per side.

Remove the burgers and mushroom caps from the grill. Place each burger patty between two mushroom caps and serve, letting each person garnish with any of the organic fixings listed. (Vegetarians can simply pile their choices of fixings between two mushroom caps.)

Download the printable PDF here.



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