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    Home / Sandwiches & Spreads

    Vegan Portobello Mushroom Burger with Cheddar Sauce

    Last updated: Jun 4, 2019 · Published: Feb 8, 2019 by Elizabeth Shah. This page may contain affiliate links.

    886 shares
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    There’s nothing quite as satisfying as sinking your teeth into a juicy burger on a chewy bun, loaded with grilled onion, lettuce and tomatoes--and cheese! I’ve had some burger disappointments lately (more on that later), so I just had to get in the kitchen and create a truly satisfying—yet healthy—whole food, plant-based, no oil burger recipe. Behold the Vegan Portobello Mushroom Burger with Cheddar Sauce.

    These vegan portobello mushroom burgers are marinated and broiled to juicy perfection, giving them a hearty, satisfying, intense umami flavor. And the cheddar sauce—it’s TO DIE FOR! No kidding, if you’ve been missing cheese you simply must make this cheddar sauce. It’s fast, easy and you’ll want to eat it by the spoonful. Just be sure to grab a big handful of napkins!

    Bummer Burgers

    So why have I been bummed about burgers lately? Like a lot of other vegans, I was excited to hear that some new vegan burgers, reported to taste amazingly close to the real deal, were hitting the market. I tried one a couple of months ago, and it was really good! I couldn’t wait to eat more.

    But then…I checked out their nutrition. Turns out, these new vegan burgers aren’t a whole lot healthier than a traditional beef burger. Sure, they avoid cholesterol and disease-promoting animal protein, but they’re high in saturated fat from coconut oil. Yet, great disappointments can inspire new discoveries, so I got to work on this Vegan Portobello Mushroom Burger with Cheddar Sauce recipe.

    Vegan Portobello Mushroom Burger to the Rescue

    It’s important to note that when considering health, there’s the matter of the poor cows! I get it—some people simply can’t let go of their meat cravings, and these vegan burgers are a much-needed, humane alternative to killing and eating animals. I’m ALL for that!

    That said, being a proponent of a healthy, whole food, plant-based, no oil diet, I feel we’d all benefit from exploring some healthier alternatives to these alternatives—just like this Vegan Portobello Mushroom Burger with Cheddar Sauce—especially if we hope to enjoy them more than once in a blue moon.

    Long live the cows and  the kind people who don’t eat them!

    If you like this whole food, plant-based, no oil recipe, you might also like:

    • Creamy Potato Salad
    • Oil Free Za’atar Sweet Potato Fries
    • Spicy Grilled Eggplant
    • Vegan Mushroom Walnut Bolognese
    • Best Damn Vegan Chili (with mushroom & beans)

    📖 Recipe

    Vegan Portobello Mushroom Burger with Cheddar Sauce

    Vegan Portobello Mushroom Burgers are marinated and broiled to juicy perfection for a hearty, satisfying, intensely umami flavor. And the cheddar sauce—it’s TO DIE FOR.
    5 from 8 votes
    Print SaveSaved! Pin Rate
    Course: Main Course
    Cuisine: American
    Prep Time: 10 minutes minutes
    Cook Time: 10 minutes minutes
    Marinating Time: 30 minutes minutes
    Total Time: 50 minutes minutes
    Servings: 4
    Calories: 412kcal
    Author: Elizabeth Shah
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    Ingredients

    Marinade

    • ½ cup red wine or veggie stock
    • ¼ cup low sodium soy sauce (recipe) or sub store bought
    • ¼ cup balsamic vinegar
    • 1 tablespoon miso paste
    • 4 cloves garlic smashed and minced

    Cheddar Sauce (makes a double batch)

    • 1 cup cashews soaked in hot water for 15 minutes
    • ¾ cup prepared low sodium 'no chicken' bouillon or vegetable stock
    • 2 tablespoons apple cider vinegar
    • ⅛ cup nutritional yeast
    • 1 tablespoon tomato paste
    • 1 teaspoon vegan Worcestershire sauce
    • ½ teaspoon smoked paprika
    • ¼ teaspoon onion powder
    • ¼ teaspoon garlic powder

    Other Ingredients

    • 4 large portobello mushrooms stemmed and cleaned
    • 1 large red onion cut into 4, ¼-inch thick slices
    • 4 whole grain hamburger buns GF if desired
    • Optional: toppings of choice like lettuce tomato, etc.
    US Customary - Metric

    Instructions

    To make the marinade:

    • In a medium bowl or food processor, add the wine (or stock), soy sauce, balsamic vinegar, miso paste, and garlic, and whisk/blend well.
    • Place the mushrooms and onion slices in one (or more) shallow baking dishes or plastic food containers, and pour the marinade over them. (See notes.) Marinate the portobellos and onion slices for 30 minutes, turning over halfway through.

    To make the cheddar sauce:

    • While the mushrooms and onions are marinating, make cheddar sauce. In a blender, combine the soaked cashews, veggie stock, apple cider vinegar, nutritional yeast, tomato paste, Worcestershire sauce, smoked paprika, salt, onion powder, garlic powder, and process on high until smooth and creamy.

    To make the burgers

    • Set the oven to broil-HI, and position a rack about 4-5 inches from the flame. On a baking sheet or broiler pan, spread out the marinated mushrooms--top side up--and onions. Broil on high for 10 - 15 minutes (depending on the size of your mushrooms) or until cooked through and well browned. OR GRILL ON HIGH HEAT. Turn the mushrooms and onions over about half way through cooking. Spoon on a little leftover marinade after flipping, if desired. (See notes.)
    • Build your burger and enjoy. I like to turn my mushroom upside down--so that the it holds more of the cheese sauce!

    Notes

    • If your mushrooms are large, you may have to use multiple dishes for marinating. Just be sure the dishes aren't too big, so that there's about ½ of liquid in the bottom of each dish.
    • You don't need any oil or a non-stick pan--the mushroom and onions won't stick.
    • You can broil the mushrooms for as little as 7 minutes (more if they're very large) and they'll be 'cooked.' However, I like the flavor of mushrooms when they're well done, I so recommend a longer cooking time.

    Nutrition (approximate)

    Serving: 1burger | Calories: 412kcal | Carbohydrates: 46g | Protein: 15g | Fat: 18g | Saturated Fat: 3g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 9g | Trans Fat: 0.003g | Sodium: 536mg | Potassium: 879mg | Fiber: 6g | Sugar: 14g | Vitamin A: 191IU | Vitamin C: 4mg | Calcium: 89mg | Iron: 5mg
    Tried this Recipe? Please share it!Mention @HealthyMidwesternGirl or tag #HealthyMidwesternGirl!

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    886 shares

    Reader Interactions

    Comments

    1. Debbie

      July 29, 2021 at 9:06 pm

      5 stars
      Whoa!!! Delicious and pretty quick to whip up!!!! I didn’t include the sliced onions because I used my homemade pickled onions instead. The cheddar sauce is outstanding!!!

      Reply
      • Elizabeth Shah

        August 03, 2021 at 3:28 pm

        Thanks a bunch Debbie! Love the idea of adding homemade pickles :0

        Reply
    2. Shawn

      August 12, 2020 at 6:20 pm

      5 stars
      Great recipe. We have made this a few times. I poke holes in the mushroom to help them marinate quicker.
      Also, the cheese sauce is perfect to make mac n cheese.

      Reply
      • Elizabeth Shah

        August 15, 2020 at 2:43 pm

        Hi Shawn, I'll have to try that next time I make this recipe! I agree--also makes a yummy sauce for mac. Thanks so much. 🙂

        Reply
    3. Sylvia V

      December 07, 2019 at 9:30 pm

      5 stars
      These are the best portobello mushroom burgers I’ve ever had!! And the cheese sauce is amazing!

      Reply
      • Elizabeth Shah

        December 09, 2019 at 2:35 pm

        Thank you SO much Silvia! Thrilled to hear that you enjoyed both the mushroom burgers and the sauce. You made my week! 🙂

        Reply
    4. Craig Vanderweide

      June 11, 2019 at 2:07 pm

      Question: My girlfriend is avoiding fats. She follows the Dean Ornish plan. Is there a way to sub something for the cashews in the sauce?

      Reply
      • elizabeth

        June 11, 2019 at 2:33 pm

        Hi Craig, I have a couple of suggestions for you. First, you could just substitute an equal amount of chickpeas, and that should work. For a recipe I've made with chickpeas, you could make a thick version of my chickpea cheese sauce. Just use the 1/4 cup of low sodium broth and if it's still too thin, you can cook it down to thicken it. Or, if she likes aioli, you can make my oil free mayo/aioli recipe using tofu. Hope one of these work for you!

        Reply
    5. Swati

      March 05, 2019 at 9:16 am

      5 stars
      I love mushrooms and I marinate mushrooms before grilling but never used this way in burgers.. Superb vegan replacement of beef in burgers..

      Reply
      • elizabeth

        March 05, 2019 at 7:09 pm

        Thanks so much Swati! We really love these, can't get enough of them!

        Reply
    6. Choclette

      March 05, 2019 at 8:50 am

      5 stars
      Everything about your burger shouts deliciousness. That cheddar sauce especially looks good. I've found a lot of ready processed vegan food isn't really that healthy. Such a shame. But then I prefer a good home cooked meal any day.

      Reply
      • elizabeth

        March 05, 2019 at 9:21 am

        Thanks so much Choclette! I try to use as many unprocessed, homemade ingredients as I can--short of spending my entire life in the kitchen. 🙂 I'm with you, home cooked is definitely better and almost always healthier.

        Reply
    7. Mayuri Patel

      February 18, 2019 at 7:40 am

      Marinating the mushrooms before cooking is an awesome idea. Till now have just pan fried them with a bit of garlic and used them as fillers for burgers. Love your idea, thanks for sharing.

      Reply
      • elizabeth

        February 18, 2019 at 8:54 am

        Thanks Mayuri! I personally love mushrooms, but I realize not everyone is a fan. I think marinating (and broiling) the mushrooms transforms their texture and flavor enough so that even people who don't typically care for mushrooms will go for these.

        Reply
    5 from 8 votes (1 rating without comment)

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    Hi, I'm Elizabeth Shah

    My husband calls me his "healthy Midwestern girl," because I LOVE TO EAT! Fortunately, I also love to cook. I'm so excited to share my 100% vegan, whole food, plant-based, no oil recipes with you! MORE...

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