Portobello Mushroom Burger Recipe

Grilled portobello mushroom burger is a delicious burger whether you eat meat or not. This portobello burger recipe is flavorful, meaty, and juicy and topped with all your favorite toppings.

This is a must try whether you are on a plant based diet or not. You may love these other delicious mushroom recipes – Blackstone Sautéed Mushrooms, Foil Pack Grilled Mushrooms Recipe, Grilled Mushrooms Recipe and Grilled Portobello Mushrooms Recipe.

What is a Portobello Mushroom Burger?

Portobello Mushroom Burger is a veggie burger that is stacked with all your favorite classic burger toppings. It is marinated in a savory sauce and then grilled. The mushroom is then placed on a hamburger bun with melted swiss cheese.

Because of the flavor, even those that do not eat a veggie based diet will love this burger recipe.

Why We Love This Mushroom Burger

Ingredients

Scroll to the bottom for the full recipe in the recipe card.

How to Make Portobello Mushroom Burger

Step 1 – Combine Marinade Ingredients – Whisk together the oil, balsamic vinegar, soy sauce, garlic powder. Mix in the black pepper and salt in a shallow baking dish.

Step 2 – Clean Mushrooms – Remove the stems and gills from the mushrooms. 

Step 3 – Marinade Mushrooms – Add them to the baking dish and flip gill side to coat them in the marinade mixture.  Let the mushrooms marinade for at least 5 minutes.

Step 4 – Preheat grill. Remove the mushrooms from the marinade and shake off any excess marinade.  Place them on the grill on direct heat.  Cook then top with sliced cheese.

• Step 7 – Serve and enjoy – Place the lettuce, tomatoes and onions on the bottom buns. Then top with the cooked mushrooms and top bun.  Serve warm and enjoy!  

Recipe Tips

• Marinade – Before placing the mushroom caps on the grill, remove any excess marinade from the mushroom.
• Top with Cheese – Top the mushroom with cheese before removing from the grill. This allows for the cheese to melt perfectly on the grill.
• Seasoning – The mushrooms are seasoned with salt and pepper and other simple ingredients. Feel free to change to what you have on hand.
• Grilling – You can grill the portobello mushrooms on the grill or in a grill pan. You can even cook on a Blackstone Griddle.
• Preparing portobello mushroom caps – Remove the stem side off the mushrooms and clean and dry with a paper towel.
• Balsamic Vinegar – We recommend using balsamic vinegar as it adds so much flavor.
• Olive Oil – We love the flavor that olive gives these mushrooms. But you can also use avocado oil or another higher smoke point oil.
• Serving – This portobello mushroom burger is best served immediately with your favorite toppings.

How to Cook on Blackstone

If you have a Blackstone, you can easily make this Portobello Mushroom Burger on the griddle. After marinating the mushroom, place the mushroom on the griddle that has been preheated and buttered.

Cover and cook portobello mushrooms for about 4 minutes. Then remove the cover and cook for about a minute longer.

Then remove from the griddle and add to a hamburger buns with your favorite toppings.

Portobello Mushroom Burger Topping Ideas

You can easily serve these burgers with your favorite toppings and condiments.  

• Grilled Red Onions
• Lettuce
• Slice Tomatoes
• Swiss Cheese or Cheddar Cheese
• Ketchup
• Yellow Mustard or Dijon Mustard
• Avocado
• Pickles

What to Serve with a Portobello Mushroom Burger

There are many different sides that you can serve with this delicious Portobello Mushroom Burger.

• Grilled French Fries – No fancy tool is needed for these hand-cut French Fries. You simply cut them in ¼ inch strips and toss them in some seasoning and grill them in an iron skillet.
• Grilled Vegetables – These grilled vegetables in foil make the perfect side for this mushroom burger. It is delicious and easy to make.
• Parmesan Grilled Zucchini – Add zucchini to your grill and top with parmesan for a delicious side dish. We love to roast zucchini but grilling zucchini directly on the grill gives the zucchini that perfect grill marks.

Frequently Asked Questions