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    Home » Recipes » Vegetarian Main Dishes

    Portobello mushroom steak and polenta chips with béarnaise sauce {vegetarian, gluten free}

    Published: May 5, 2014 · Updated: Apr 13, 2022 · by Nicole · This post may contain affiliate links.

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    Portobello mushroom steak and polenta chips with béarnaise sauce {vegetarian, gluten free}
    Portobello mushroom steak and polenta chips with béarnaise sauce {vegetarian, gluten free}
    Portobello mushroom steak and polenta chips with béarnaise sauce {vegetarian, gluten free}
    Portobello mushroom steak and polenta chips with béarnaise sauce {vegetarian, gluten free}
    Portobello mushroom steak and polenta chips with béarnaise sauce {vegetarian, gluten free}
    Portobello mushroom steak and polenta chips with béarnaise sauce {vegetarian, gluten free}

    Portobello Mushroom Steak with Polenta Chips and Bearnaise recipe - vegetarian steak and chips | Recipe at DeliciousEveryday.com

    Over the last 20 years that I've been vegetarian, the most common piece of unsolicited advice I've been given from people, when they discover I'm vegetarian, is that I simply need a big juicy steak and that will "fix me" right up. Well, 20 years later (I'm perhaps either a slow learner, or stubborn, or both) I've finally taken their advice, albeit with a vegetarian spin.

    As a "meat for vegetarians" I've had fun experimenting with using mushrooms over the years, to reinvent in a variety of classic meat dishes - such as Beef Wellington, which became Mushroom Wellington, and Boeuf Bourguignon, which became Mushroom Bourguignon.

    So, when I was recently asked by the Australian Mushroom Growers Association to come up with a mushroom recipe for Mother's Day, I couldn't help but have a little more fun, and continue along the "meat for vegetarians theme". This time we have the classic Steak and Chips which has been turned into Portobello Mushroom Steak and Polenta Chips with Bearnaise Sauce.

    Mushrooms are fabulously meaty in texture, so I don't think it's too much of a stretch to turn hefty portobello mushrooms into portobello steaks. The trick here is to cook the mushrooms in a medium hot pan, to get a nice sear on the outside, which adds to the allusion of steak.

    Served with a side salad (such as this simple cucumber salad, roasted pumpkin and quinoa salad or this fig and pear salad) it would be a wonderfully hearty mothers day lunch, satisfying vegetarians and carnivores alike.

    Portobello Mushroom Steak with Polenta Chips and Bearnaise recipe - vegetarian steak and chips | Recipe at DeliciousEveryday.com

    PS. Power Of Mushrooms is running a competition at the moment where you have the chance to win one of five $500 cash prizes. Click here to enter!

    Portobello mushroom steak and polenta chips with béarnaise sauce {vegetarian, gluten free}

    Mushroom steak and polenta chips with bearnaise sauce

    Bearnaise sauce recipe from Nigella Lawson
    5 from 2 votes
    Print Pin Save Saved!
    Course: Main Course
    Cuisine: gluten free, vegetarian
    Keyword: mushroom recipe, Portobello mushroom, Portobello mushroom steak and polenta chips with béarnaise sauce
    Prep Time: 20 minutes
    Cook Time: 1 hour
    Total Time: 1 hour 20 minutes
    Calories: 758kcal
    Author: Delicious Everyday
    4 servings

    Ingredients

    • POLENTA CHIPS:
    • 4 cups vegetable stock
    • 1 cup instant polenta
    • ½ cup grated parmesan
    • 2 tbs olive oil
    • sea salt
    • BEARNAISE SAUCE:
    • 1 tbs minced shallot
    • 2 tbs fresh tarragon leaves chopped, and their stalks, chopped roughly and bruised
    • 2 tbs white wine vinegar
    • 2 tbs white wine
    • 1 tsp peppercorns crushed or bruised
    • 3 egg yolks
    • 1 tbs water
    • 220 g unsalted butter at room temperature, cut into ½-inch cubes, 2 sticks
    • Salt
    • Freshly milled white or black pepper
    • ¼ to ½ lemon juiced
    • MUSHROOM STEAKS:
    • 4 - 6 extra large portobello mushrooms cleaned and stalks trimmed so that the mushrooms sit flat stalk side down
    • 1 tbs olive oil
    • salt and pepper
    US Customary - Metric

    Instructions

    • Begin by making the polenta chips. Lightly grease a 20cm (8 inch) square cake tin and set aside. Place the stock in a large saucepan over medium heat and bring to the boil. Gradually whisk in the polenta, in a steady stream (don't dump it all in at once), and whisking continuously for 2–3 minutes or until thick. Remove from the heat and stir through the parmesan. Pour into the cake tin carefully smooth the top. Refrigerate for 2 to 3 hours, or overnight, until set.
    • Preheat the oven to 200 celsius (400 Fahrenheit) and line a baking tray with baking paper or parchment. Remove the polenta from the tin and cut into thick chips. Arrange on the prepared tray and lightly brush with half the olive oil. Bake for 15 minutes and turn the chips and lightly brush with remaining olive oil. Return to the oven and bake until crisp and lightly browned, approximately another 15 minutes. Sprinkle the chips with sea salt and toss to coat.
    • When the chips go in the oven prepare the bearnaise sauce.
    • To make the bearnaise, place the shallot, tarragon stalks, half the tarragon leaves, vinegar, white wine and peppercorns in a saucepan. Bring to a boil and reduce until about 1 tbs in volume. Strain the liquid through a tea strainer, and press the tarragon leaves and stalk to get all of the liquid. Set aside to cool slightly. Place a saucepan of water over a medium heat and bring to a gentle simmer. Place a heatproof bowl over the top of the pan of simmering water (ensuring the bowl does not touch the water) and add the egg yolks and water, along with the tarragon vinegar. Whisk constantly until the mixture thickens and doubles in size start adding the cubes of butter, one at a time, until all the butter is absorbed. Taste and season with salt and pepper along with lemon juice.
    • Just before the chips are ready preheat 2 large frying pans over a medium high heat. Lightly brush the mushrooms with olive oil and sprinkle season with salt and pepper. Cook for 3 to 4 minutes each side, until cooked through and lightly charred.
    • Divide the mushroom steaks and polenta chips between 4 plates. Add the remaining tarragon to the bearnaise and stir through. Serve with the mushroom steaks and chips.

    Notes

    The polenta for the chips can be made the day before, and cut into chips, and cooked just before serving.

    Nutrition (Estimated)

    Calories: 758kcalCarbohydrates: 37gProtein: 11gFat: 62gSaturated Fat: 33gCholesterol: 275mgSodium: 1146mgPotassium: 139mgFiber: 1gSugar: 2gVitamin A: 2300IUVitamin C: 1.2mgCalcium: 184mgIron: 1.3mg
    Shop our Cookbooks!Check out our collection of vegetarian and vegan cookbooks for more tasty meatless recipe ideas.

    Disclosure
    This post was sponsored by Australian Mushroom Growers Association. As always, all opinions are my own.

    More Vegetarian Main Dishes

    • Vegan Beet Wellington
    • Vegan Vegetable Wellington
    • Sweet Potato Chickpea Curry
    • Vegan Stuffed Shells

    Reader Interactions

    Comments

    1. Yliana Villegas says

      May 16, 2014 at 7:23 pm

      5 stars
      Wonderful recipe for vegetarian. I liked this because it has few ingredients easy to prepare within a less time. Along with this it has a good taste. Thanks Jennifer for sharing how to make a delicious recipe.

      Reply
    2. Laura (Tutti Dolci) says

      May 08, 2014 at 3:36 pm

      I love meaty portobellos, what a flavorful dish!

      Reply
    3. Maureen | Orgasmic Chef says

      May 07, 2014 at 8:43 pm

      5 stars
      I'm not a vegetarian as you know but I would be 100% happy with this gorgeous plate of food.

      Reply
    4. Amy @ Thoroughly Nourished Life says

      May 07, 2014 at 9:38 am

      I love it when people try to tell me that I should be eating meat...not!
      I'd rather have some gorgeous veggies like this! Homemade Bearnaise sauce would be perfect for these wintery evenings we seem to be having here in Brisbane. And polenta chips? Yum! My Mum's favourite too 🙂

      Reply
      • Jennifer says

        May 07, 2014 at 1:58 pm

        I love polenta chips too. I hope your mum has a great mother's day.

        Reply
    5. Mel @ The cook's notebook says

      May 07, 2014 at 9:03 am

      Yum! I love mushrooms and they often feature as the main part of the meal. I also love polenta chips but have never had success making them. Will try this . Thanks Jennifer 🙂

      Reply
    6. my kitchen stories says

      May 06, 2014 at 6:48 pm

      There is nothing more delicious than a mushroom and I think this is a very fun twist on a classic ( and one I would be happy with)

      Reply
    7. Fiona @TIFFIN bite sized food adventures says

      May 05, 2014 at 10:07 pm

      Great post Jennifer and I like the recipe in particular for polenta chips. Easy to follow. Thanks.

      Reply
    8. Martine @ Chompchomp says

      May 05, 2014 at 7:11 pm

      I initially glanced past this thinking it was just a steak n chips recipe. Glad I checked it out. Vego for the hubby and GF for me. Absolutely love polenta chips

      Reply
      • Jennifer says

        May 05, 2014 at 8:09 pm

        I love polenta chips too. Especially with herb salt 😉

        Reply
    9. Gourmet Getaways says

      May 05, 2014 at 6:15 pm

      I'm always on the lookout for extraordinary recipes and this one looks amazingly delicious. Thank you for sharing a perfect dish for the holidays!

      Julie
      Gourmet Getaways

      Reply
    10. Amanda (@lambsearshoney) says

      May 05, 2014 at 5:03 pm

      I just adore mushrooms, especially those big, meaty Portobellos, so this is an instant winner for me. Now - I just need to get someone to cook it for me.

      Reply
    11. Rosa says

      May 05, 2014 at 4:44 pm

      Beautifully presented and ever so scrumptious! A wonderful dish.

      Cheers,

      Rosa

      Reply
    12. Christie says

      May 05, 2014 at 2:32 pm

      I have never made bernaise from scratch although I love it! Definitely a special dish for mums everywhere 😉

      Reply
      • Jennifer says

        May 05, 2014 at 4:06 pm

        It sounds a bit fiddly but really it's not that hard. It's well worth the effort for mums on their special day 😉

        Reply

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    Nicole - Vegetarian Food Blogger

    Nicole is a 25+ year vegetarian, and author of a vegan cookbook. She shares her recipes on Delicious Everyday, an award-winning vegetarian and vegan food blog.  About Nicole

    the one pot vegan cookbook, by nicole malik
    5 day vegetarian challenge

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