The BEST Portobello Mushroom Burger Recipe

The Best Portobello Mushroom Burger Recipe

What makes this the best portobello mushroom burger recipe is it’s low calories (just 343 calories!) The quick cook and prep time, and the fact that you can cook these portobello mushroom recipes 4 ways.

Find these healthy recipes for portobello burgers below, along with lots of tips, tricks, and shortcuts to get dinner on the table right away.

The Best Portobello Mushroom Burger Recipe

Learn how to cook portobello mushroom burger recipes 4 ways!

  • Grilled
  • Baked
  • Sautéed
  • Air fried

These best portobello mushroom recipes can be made anyway you like… on the BBQ, in the Oven, on the Stove Top, and even in the Air Fryer!

The Best Vegan Lentil Burger Ever!

This portobello mushroom burger recipe can be made 4 ways, and is just 343 calories!

The Best Portobello Mushroom Burger Recipe

Making portobello mushroom hamburgers has never been easier, thanks to this helpful article.

Below you’ll find a shopping list, printable recipe guide. Directions on how to cook portobello mushrooms burger recipes on the grill, in the oven, on the stovetop, and in the air fryer.

The Best Portobello Mushroom Burger Recipe

What You’ll Find in this Article:

Helpful Tip for Shopping: Take a screenshot of the shopping list to your phone. This way you have it at your fingertips the next time you go grocery shopping.

Recipe Card Uses: You can email yourself this recipe card so you can easily search for it (I have a folder in my email just for recipes!) Or print it so you have it handy, and can make notes. You can even pin this roasted portobello mushroom burger to Pintrest so it is safely stored for you.

Up next, a shopping list for this low calorie portobello burger recipe…

Ingredients in Vegan Portobello Mushroom Burgers

These portobello mushroom cap burgers are packed full of flavor, I find that they don’t even need ketchup, mustard or sauce! The avocado becomes the sauce! Yum!

But if you are looking for a good mushroom burger sauce, here are a few vegan favorites.

Optional Vegan Sauces for Portabello Burgers:

The Best Portobello Mushroom Burger Recipe

Shopping List for Portobello Burgers:

Special Tip: You can find all the measurements in the recipe card below. There you can choose how many servings of low calorie portobello mushroom burger vegan recipe you want to make. It will do all the measurement math for you! All of the ingredients for this veggie burger with portobello mushroom can be doubled or tripled with the click of a button.

Up next, how to cook portobello mushroom burger recipes 4 ways…

How to Make Mushroom Burger Recipes

You can make these portobello burgers 4 ways!

Below you’ll learn how to make a baked portobello mushroom burger. Learn the temp and timing for grilling portobello mushroom burgers, how to air fry portobello burgers… and even how to use a sauté pan to make these healthy portobello burgers.

How to Make Portobello Burgers on the Grill:

  1. Preheat the grill to medium heat.
  2. Remove the stems from the portobello mushrooms, and clean the caps with a damp cloth or paper towel.
  3. Slice the onion into 2 rings.
  4. Spray the mushrooms and onions with olive oil. And sprinkle all over with seasoning salt.
  5. Add the mushrooms to the hot grill, gill side up (cut side up). And add the onions alongside them.
  6. Cook 7 minutes, flip and cook for an additional 5-7 minutes, until the mushrooms are tender and the onions are soft.
  7. Meanwhile, add the avocado and lime juice to a medium bowl. Smash with the back of a fork until spreadable.
  8. Add 1/2 of the smashed avocado to the bottom of each bun. Top each with the cooked portobellos, then the tomato, grilled onions, and spinach.
  9. Add ketchup, mustard, or your favorite burger sauce, and serve hot.
  10. Special Toasting Tip- I like to toast the buns, if you’re using a BBQ to make these mushroom burgers you can just add them cut side down on the grill for the last minute or so… watch them so they don’t burn!

How to Cook Portobello Burgers in the Oven:

  1. Preheat the oven to 375 degrees and spray a baking sheet with olive oil.
  2. Remove the stems from the portobello mushrooms, and clean the caps with a damp cloth or paper towel.
  3. Slice the onion into 2 rings.
  4. Add the mushrooms (cut side down) and onions to the prepared baking sheet and sprinkle with seasoning salt.
  5. Bake for 20 minutes, until the mushrooms are tender and the onions are soft.
  6. Meanwhile, add the avocado and lime juice to a medium bowl. Smash with the back of a fork until spreadable.
  7. Add 1/2 of the smashed avocado to the bottom of each bun. Top each with the cooked portobellos, then the tomato, grilled onions, and spinach.
  8. Add ketchup, mustard, or your favorite burger sauce, and serve hot.
  9. Special Toasting Tip- I like to toast the buns, if you’re baking these mushroom burgers you can just add them, cut side up on a clean baking sheet for the last 1-3 minutes.

How to Make Portobello Burgers on the Stovetop:

  1. Preheat a grill pan or large skillet over medium heat.
  2. Remove the stems from the portobello mushrooms, and clean the caps with a damp cloth or paper towel.
  3. Slice the onion into 2 rings.
  4. Spray the mushrooms and onions with olive oil. And sprinkle all over with seasoning salt.
  5. Add the mushrooms to the hot pan, gill side up (cut side up). And add the onions alongside them.
  6. Cook 7 minutes, flip and cook for an additional 5-7 minutes, until the mushrooms are tender and the onions are soft.
  7. Meanwhile, add the avocado and lime juice to a medium bowl. Smash with the back of a fork until spreadable.
  8. Add 1/2 of the smashed avocado to the bottom of each bun. Top each with the cooked portobellos, then the tomato, grilled onions, and spinach.
  9. Add ketchup, mustard, or your favorite burger sauce, and serve hot.
  10. Special Toasting Tip- I like to toast the buns, if you’re using a grill pan or skillet to make these mushroom burgers you can just start by toasting the buns, cut side down in the pan for 2-3 minutes or so… then begin cooking the rest. As a bonus, they will crunch up a little more while they cool.

How to Cook Portobello Burgers in the Air Fryer:

  1. Preheat the air fryer to 370 degrees.
  2. Remove the stems from the portobello mushrooms, and clean the caps with a damp cloth or paper towel.
  3. Slice the onion into 2 rings.
  4. Spray the mushrooms and onions with olive oil. And sprinkle all over with seasoning salt.
  5. Carefully add the mushrooms to the hot air fryer, cut side down. And add the onions alongside them.
  6. Air fry for 7 minutes, the mushrooms will be tender and the onions soft.
  7. Meanwhile, add the avocado and lime juice to a medium bowl. Smash with the back of a fork until spreadable.
  8. Add 1/2 of the smashed avocado to the bottom of each bun. Top each with the cooked portobellos, then the tomato, grilled onions, and spinach.
  9. Add ketchup, mustard, or your favorite burger sauce, and serve hot.
  10. Special Toasting Tip- I like to toast the buns, you can do this in the oven. Add cut side up to a clean baking sheet and bake for 1-3 minutes at 375 degrees.

Special Tip: You can find these directions, along with measurements, nutrition and more in the sharable recipe card in the next section!

Up next, a sharable recipe card for the best portobello burger recipe… cooked 4 different ways!

The Best Portobello Mushroom Burger Recipe

What makes this the best portobello mushroom sandwich or burger, is that you can cook it 4 different ways!

We’ve even supplied you with 4 vegan burger sauces (above!) and showed you how easy it is to cut calories… This way you can enjoy these vegan burgers for just 343 calories.

The Best Portobello Mushroom Burger Recipe

Portobello Burgers (Grill, Oven, Air Fryer, Stovetop)

Lose Weight By Eating
This vegan portobello mushroom burger recipe is just 343 calories!
We've also supplied you with directions on cooking portobello burgers on the grill, in the oven, stovetop, and even on the air fryer!
This delicious portobello recipe makes a great dinner or lunch, and can easily be made gluten-free with your favorite GF burger buns!
5 from 1 vote
Prep Time 5 mins
Cook Time 10 mins
Total Time 15 mins
Course dinner, lunch, Main Course
Cuisine American
Servings 2 servings
Calories 343 kcal

Ingredients
  

Instructions
 

How to Make Portobello Burgers on the Grill:

  • Preheat the grill to medium heat.
  • Remove the stems from the portobello mushrooms, and clean the caps with a damp cloth or paper towel.
  • Slice the onion into 2 rings.
  • Spray the mushrooms and onions with olive oil. And sprinkle all over with seasoning salt.
  • Add the mushrooms to the hot grill, gill side up (cut side up). And add the onions alongside them.
  • Cook 7 minutes, flip and cook for an additional 5-7 minutes, until the mushrooms are tender and the onions are soft.
  • Meanwhile, add the avocado and lime juice to a medium bowl. Smash with the back of a fork until spreadable.
  • Add 1/2 of the smashed avocado to the bottom of each bun. Top each with the cooked portobellos, then the tomato, grilled onions, and spinach.
  • Add ketchup, mustard, or your favorite burger sauce, and serve hot.
  • Special Tip- I like to toast the buns, if you're using a BBQ to make these mushroom burgers you can just add them cut side down on the grill for the last minute or so… watch them so they don't burn!

How to Cook Portobello Burgers in the Oven:

  • Preheat the oven to 375 degrees and spray a baking sheet with olive oil.
  • Remove the stems from the portobello mushrooms, and clean the caps with a damp cloth or paper towel.
  • Slice the onion into 2 rings.
  • Add the mushrooms (cut side down) and onions to the prepared baking sheet and sprinkle with seasoning salt.
  • Bake for 20 minutes, until the mushrooms are tender and the onions are soft.
  • Meanwhile, add the avocado and lime juice to a medium bowl. Smash with the back of a fork until spreadable.
  • Add 1/2 of the smashed avocado to the bottom of each bun. Top each with the cooked portobellos, then the tomato, grilled onions, and spinach.
  • Add ketchup, mustard, or your favorite burger sauce, and serve hot.
  • Special Tip- I like to toast the buns, if you're baking these mushroom burgers you can just add them, cut side up on a clean baking sheet for the last 1-3 minutes.

How to Make Portobello Burgers on the Stovetop:

  • Preheat a grill pan or large skillet over medium heat.
  • Remove the stems from the portobello mushrooms, and clean the caps with a damp cloth or paper towel.
  • Slice the onion into 2 rings.
  • Spray the mushrooms and onions with olive oil. And sprinkle all over with seasoning salt.
  • Add the mushrooms to the hot pan, gill side up (cut side up). And add the onions alongside them.
  • Cook 7 minutes, flip and cook for an additional 5-7 minutes, until the mushrooms are tender and the onions are soft.
  • Meanwhile, add the avocado and lime juice to a medium bowl. Smash with the back of a fork until spreadable.
  • Add 1/2 of the smashed avocado to the bottom of each bun. Top each with the cooked portobellos, then the tomato, grilled onions, and spinach.
  • Add ketchup, mustard, or your favorite burger sauce, and serve hot.
  • Special Tip- I like to toast the buns, if you're using a grill pan or skillet to make these mushroom burgers you can just start by toasting the buns, cut side down in the pan for 2-3 minutes or so… then begin cooking the rest. As a bonus, they will crunch up a little more while they cool.

How to Cook Portobello Burgers in the Air Fryer:

  • Preheat the air fryer to 370 degrees.
  • Remove the stems from the portobello mushrooms, and clean the caps with a damp cloth or paper towel.
  • Slice the onion into 2 rings.
  • Spray the mushrooms and onions with olive oil. And sprinkle all over with seasoning salt.
  • Carefully add the mushrooms to the hot air fryer, cut side down. And add the onions alongside them.
  • Air fry for 7 minutes, the mushrooms will be tender and the onions soft.
  • Meanwhile, add the avocado and lime juice to a medium bowl. Smash with the back of a fork until spreadable.
  • Add 1/2 of the smashed avocado to the bottom of each bun. Top each with the cooked portobellos, then the tomato, grilled onions, and spinach.
  • Add ketchup, mustard, or your favorite burger sauce, and serve hot.
  • Special Tip- I like to toast the buns, you can do this in the oven. Add cut side up to a clean baking sheet and bake for 1-3 minutes at 375 degrees.

Nutrition

Serving: 1burgerCalories: 343kcalCarbohydrates: 39.4gProtein: 10.8gFat: 17.2gSaturated Fat: 3.6gCholesterol: 5mgSodium: 1654mgPotassium: 400mgFiber: 8.5gSugar: 8.3gCalcium: 24mgIron: 2mg
Keyword burgers, mushroom, vegan
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Nutrition and Calories in Portobello Mushroom Burgers

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