Portabello Mushroom Burgers

Portabello Burgers

Portabello Burgers were something that seemed logical to try during our 30 days of vegan.  People always describe portabello mushrooms as being very “meaty”, so it wasn’t a big leap to plan to marinate and season the mushrooms and put them on the grill.  They even almost look like burgers when they’re on the buns.  The most important part of this is that these portabello burgers are delicious.  Everyone in our family really enjoyed them, and since I made extra, I took them to work and shared with my coworker who also gave the recipe a thumbs up.

Turning a mushroom into a burger required some additional spices and a tasty marinade.  I wanted to use worcestershire sauce, but I hadn’t purchased a vegan option when I made this recipe, so instead, I combined red wine vinegar with soy sauce and olive oil along with some herbs and spices to add extra flavor to the burgers.  Even Baker’s Man, a committed carnivore, admitted that he liked these and “gave me permission” to make them again.  (Don’t tell him, but I don’t need his permission.)  If he liked them, they had to be good.

Who knew that a grilled mushroom served on a bun could be so delicious?  These would also be good grilled and sliced before being served on top of either a salad or a bed of grains.

What will you need to make this recipe?

From the Pantry:

  • red wine vinegar
  • olive oil
  • granulated garlic
  • granulated onion
  • dried oregano
  • black pepper

From the Refrigerator:

  • soy sauce
  • hamburger bun sized portabello mushrooms

Portabello Mushroom BurgersThis recipe for Portabello burgers is a great vegan option for backyard barbecues, and the resulting burgers are delectable.  We will definitely be making them again, even when we’re not being vegan.  The “burgers” were served on whole wheat buns and topped with lettuce, sliced tomato and red onion, and some vegan mayonnaise.  Lemony Celery Salad and Texas Caviar were served on the side.

If you wanted to have a full blown vegan barbecue, Portabello Burgers and Carrot Hot Dogs on the grill and a few vegan salads and desserts would be all you would need to make your guests happy.

Give our recipe for Portabello Burgers a try and let us know what you think by leaving a comment below.

Thanks for visiting Patty Cake’s Pantry.

Portabello Burgers
Recipe type: Vegan Grilling
Prep time: 
Cook time: 
Total time: 
Serves: 4
Portabello mushrooms make the perfect substitute for a regular burger and are a great way to include vegans or vegetarians in your next backyard barbecue without having to buy exotic ingredients. The total cost of the recipe is $3.52 or about $0.88 for each mushroom "burger" without the bun or toppings.
  • ¼ cup red wine vinegar ($0.59)
  • 2 tablespoons soy sauce ($0.23)
  • ¼ cup extra virgin olive oil ($0.56)
  • 1 teaspoon granulated garlic ($0.04)
  • 1 teaspoon granulated onion ($0.04)
  • 1 teaspoon dried oregano ($0.04)
  • ½ teaspoon black pepper ($0.02)
  • 4 portabello mushroom caps (The same size as, or a little larger than, your hamburger buns) ($2.00)
  1. Remove stems from portabello mushrooms. (I don't remove the gills.)
  2. Mix together red wine vinegar, soy sauce, olive oil, granulated garlic, granulated onion, dried oregano, and black pepper. in a shallow dish that will hold all 4 mushroom caps.
  3. Place mushrooms, gill side down, in the marinade. Allow them to soak for 15 minutes, flipping them over every 5 minutes.
  4. Preheat your grill and brush the grate with olive oil.
  5. Place mushrooms, smooth side up, on the grill and grill for approximately 5 - 7minutes per side or until they are tender, brushing frequently with the leftover marinade in your dish.
  6. Serve on hamburger buns with vegan mayonnaise and topped with your favorite burger toppings.

Portabello Mushroom Burgers--are mushrooms allowed to rest in a flavorful marinade before grilling. Each Mushroom "burger" costs only about $0.88.

Nutrition Information is for one Portabello Mushroom prepared according to recipe above served without a bun or additional toppings.

Nutrition Facts
Amount Per Serving
Calories 140
% Daily Value
Total Fat 12.7g
Saturated Fat 1.8g
Trans Fat 0.0g
Cholesterol 0mg
Sodium 452mg
Total Carbohydrates 4.7g
Dietary Fiber 1.4g
Sugars 0.4g
Protein 3.7g
Vitamin D 0%
Potassium 7%
Calcium 1%
Iron 5%

Disclaimer:  Nutritional information is calculated using online tools such as those available at cronometer.com or verywellfit.com.  We make every attempt to ensure that this information is calculated correctly, but this information should be considered estimates.   Varying factors such as product types or brands purchased, natural fluctuations in fresh produce, and the way ingredients are processed change the effective nutritional information in any given recipe.  In addition, different online calculators provide different results depending on their own nutrition-fact sources, databases and the algorithms used.   You are solely responsible for ensuring that any nutritional information provided is accurate, complete, and useful.  Under no circumstances will PattyCakesPantry.com be responsible for any loss or damage resulting for your reliance on nutritional information provided. 

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