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    Home » Recipes » Sandwiches

    Portobello Mushroom Burger Recipe

    Published: Jan 25, 2024 · Modified: Apr 26, 2025 by Eileen Murphy Kelly

    Jump to Recipe
    pinterest pin for portobello mushroom burgers

    My delicious Grilled Portobello Mushroom Burger Recipe will change your life. Whether you are a diehard vegetarian or looking for a delicious veggie burger, this portobello burger will make you one happy person.

    Grilled portobello mushroom on a roll with tomatoes, onions, cheese, and tomato.

    Looking for specifics on the recipe? Use the table of contents to click on sections of the recipe.

    Jump to:
    • ❤️ Why you'll love this recipe
    • 🧾 Ingredient List
    • 🍲 Equipment
    • 🔪 Instructions
    • Variations
    • Make ahead, storage, and freezer tips
    • Frequently Asked Questions
    • Serving Suggestions
    • Similar recipes
    • 📖 Recipe
    • 💬 Comments

    ❤️ Why you'll love this recipe

    • Grilled portobello mushrooms are a delicious meatless option for a hearty meal that is full of flavor and endless possibilities.
    • Marinated portobello mushrooms are the perfect vegetarian burger replacement for a ground beef burger.
    • My meat eaters love this grilled portobello burger recipe as much as a beefy burger.

    🧾 Ingredient List

    Ingredients to make portobello mushrooms with text overlay.

    As an Amazon Associate, I earn from qualifying purchases.

    •  portobello mushroom caps
    • balsamic vinegar
    • light soy sauce
    •  olive oil
    • liquid smoke
    • Worcestershire sauce
    • Italian seasoning
    • garlic powder
    • onion powder
    • black pepper
    • Kosher salt
    • non-stick cooking spray
    • 2 slices cheddar cheese optional
    •  skinny basil pesto or store-made pesto, optional topping
    • lettuce, optional topping
    • tomato, optional topping
    • sliced onion, optional topping
    • onion rolls or any roll of choice.

    🍲 Equipment

    • Stainless Steel Mixing Bowls
    • Grill Pan
    • Measuring Spoons and Cups
    • small mixing bowl

    🔪 Instructions

    This is an overview of the recipe. The full instructions are below in the recipe card.

    Use a wet paper towel to wipe clean the tops of the portobello caps. Then turn the mushrooms over and gently remove and discard the black gills underneath the mushrooms. See photo 1, below.

    A portobello mushroom having the

    Step 1: Remove the black gills from the portobello mushroom.

    A bowl with soy sauce, and other ingredients to make a marinade for portobello mushrooms.

    Step 2: Make the portobello mushroom marinade.

    Portobello mushrooms marinating in a plastic bag.

    Step 3: Marinate the portobello mushrooms for at least 30 minutes up to 12 hours.

    Step 4: Grill the portobello mushrooms and top with your favorite toppings.

    A portobello mushroom that was grilled and topped with cheese on a roll.

    Eileen's Tips for Success

    • Be sure to remove and discard the black gills from under the mushroom. They do not taste great and will impact the results.
    • The portobello mushrooms can sit in the marinade for a few hours before grilling.

    Variations

    Do you want to change up this recipe?

    Vinegar: Use any of your favorite types such as red wine vinegar or champagne vinegar for a tasty variation.

    Seasonings: Use any favorite seasoning blends for different flavors such as fajita seasoning, Cajun seasoning, Steak Seasoning, Italian seasoning, or taco seasoning.

    A sliced in half portobello mushroom on a roll.

    Make ahead, storage, and freezer tips

    Leftovers can be kept in the refrigerator in an airtight covered container for up to 3 days.

    Frequently Asked Questions

    How long should the mushrooms marinate?

    Marinate the mushrooms for at least 30 minutes up to 12 hours.

    How long does it take to grill portobello mushrooms?

    It will take about 8 minutes to grill the mushrooms.

    I do not have a grill or grill pan, what can I use to make the mushrooms?

    A cast iron pan or saute pan can be used to make these mushrooms. A Blackstone or flat-top grill can also be used to make them.

    Serving Suggestions

    Some of my favorite toppings for portobello sandwiches are avocado slices, tomato, roasted red peppers, lettuce, onions, basil aioli, ranch dressing, or blue cheese dressing.

    If you are Vegan or prefer a vegan meal, use vegan mayo dairy-free cheese, and tamari.

    Guacamole and Pico de Gallo are both favorite toppings for these portobello burgers.

    Cheese is always a great topping, from American cheese, cheddar, and havarti, to Swiss cheese. Use any of your favorite cheese types.

    Serve along with an easy Mexican bean salad for a vegetarian dinner.

    Similar recipes

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    I love any comments or questions, please feel free to leave them below.

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    Thank you for your continued support. I am forever grateful.

    Eileen  xo

    If you click on the number of servings in the recipe card you can adjust the measurements up or down for the exact number of servings you need.

    If you love this recipe please give it 5 stars! ⭐️⭐️⭐️⭐️⭐️

    📖 Recipe

    A grilled portobello mushroom burger topped with lettuce, tomato, and pickles on a bun.

    Grilled Portobello Mushroom Burger Recipe

    Delicious Grilled Portobello Mushroom Burger Recipe will make the meat lovers in your life happy! These mushroom burgers are full of flavor and so hearty. Add your favorite topping for the best meatless burger. Keep it low-carb and enjoy bunless!
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    Course: Main Course
    Cuisine: American
    Keyword: grilled portobello burger, portobello mushroom burger, portobello mushroom marinade
    Prep Time: 10 minutes minutes
    Cook Time: 12 minutes minutes
    marinating time: 30 minutes minutes
    Total Time: 52 minutes minutes
    Servings: 2 burgers
    Calories: 110kcal
    Author: Eileen Murphy Kelly

    As an Amazon Associate, I earn from qualifying purchases

    Equipment Needed:

    • As an Amazon Associate I earn from qualifying purchases
    • Stainless Steel Mixing Bowls
    • Grill Pan
    • Measuring Spoons and Cups
    • small mixing bowl

    Ingredients

    • 2 large portobello mushroom caps
    • 2 Tablespoons balsamic vinegar
    • 2 Tablespoons light soy sauce
    • 1 Tablespoon olive oil
    • ½ teaspoon liquid smoke
    • 2 drops Worcestershire sauce
    • ½ teaspoon Italian seasoning
    • ¼ teaspoon garlic powder
    • ¼ teaspoon onion powder
    • ¼ teaspoon black pepper
    • ⅛ teaspoon Kosher salt
    • non-stick cooking spray

    Portobello Mushroom Burger

    • 2 slices cheddar cheese optional
    • 1 teaspoon skinny basil pesto store made pesto can be used.
    • lettuce optional
    • tomato optional
    • sliced onion optional
    • 2 rolls

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    Instructions

    • Remove the black gills from the mushroom caps and discard the gills. Place the mushroom caps in a plastic storage bag. Set aside.
    • In a small mixing bowl, combine and whisk together balsamic vinegar, low-sodium soy sauce, olive oil, liquid smoke, Worcestershire Sauce, Italian Seasoning, garlic powder, onion powder, ground black pepper, and salt.
    • Pour the balsamic marinade into the plastic storage bag with the mushroom caps.
    • Seal the bag and place in the refrigerator for at least 30 minutes to 12 hours to marinate the mushroom caps.
    • Preheat grill pan or grill to medium/high heat to 450°F. Spray grill pan or grates with non-stick cooking spray
    • Remove portobello mushrooms from marinade. Pat dry.
    • Be sure heat is medium, add the marinated mushrooms to the preheated grill pan or grill. Let cook about 5-6 minutes per side, until the mushrooms are tender and cooked through. If adding cheese, place a slice of cheese on each portobello cap with 2 minutes left to grill.
    • Toast onion rolls during last 2 minutes of grilling the mushroom burgers for toasted buns.
    • Top with your favorite sides: lettuce, tomato, grilled onions, basil pesto, or any of your personal favorites.

    NOTES

    Be sure to check Variations, Expert Tips, and FAQs above with important tips and questions that can help make a delicious recipe.
    Storage: Leftovers can be kept in the refrigerator in an airtight covered container for up to 3 days.
    Recipes written for  Everyday Eileen are for information purposes. Eileen Kelly is not a registered dietician or nutritionist. Any nutritional data we provide is an approximation. Actual dietary information can vary based on ingredients and portion sizes. 
     
     
    Don’t forget to shop at the Everyday Eileen store on Amazon.

    Nutrition

    Serving: 1mushroom | Calories: 110kcal | Carbohydrates: 8g | Protein: 4g | Fat: 7g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Trans Fat: 0.01g | Sodium: 1179mg | Potassium: 387mg | Fiber: 2g | Sugar: 5g | Vitamin A: 11IU | Vitamin C: 0.2mg | Calcium: 22mg | Iron: 1mg
    Tried this recipe?Mention @Everyday_Eileen or tag #everydayeileen!

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