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    Home » Breakfast » Brunch

    Vegan Mushroom Steak Diane (Creamy Retro Sauce)

    Published: May 17, 2021 · Modified: Apr 27, 2022 by Jacq · This post may contain affiliate links ·10 Comments

    Jump to Recipe Print Recipe

    Vegan mushroom steak Diane is based on a classic retro dish and features juicy, meaty large flat or Portobello mushrooms cooked with shallots and garlic before stewing in an irresistible creamy, savoury sauce which is enriched with parsley.

    The result is an exciting, creative dish bursting with plant-powered goodness and tastiness.

    Perfect for brunch, lunch, dinner, or a side dish. Or add a creamy mushroom to your Buddha or power bowl for a classic touch.

    Serve with your favourite accompaniments such as home-made potato wedges, fries, mashed potatoes, peas, vegetables or salad.

    vegan mushroom steak Diane

    Origins of Steak Diane

    Vegan mushroom steak Diane is a recipe inspired by the traditional retro steak Diane meal that probably originated in  New York during the 40 - 50s.

    I say probably as the actual location is not generally agreed. Some even argue London was responsible for steak Diane or even Belgium.

    However, during the 1950s in New York steak Diane was one of the most popular meals ordered. The chef would prepare the meal at the dining table adding brandy to the sauce before spectacularly flambéing the sauce with a lighter!

    Naturally this technique was very impressive and contributed to the dishes popularity.

    The name Diane refers to the Roman goddess of the hunt and protector of deer and other wild animals.

    Creamy and peppery Diane sauces were common during the 19th Century, prepared with venison, and were dedicated to Diane.

    mushrooms turned over in pan

    Mushroom Steak Diane The Perfect Fathers Or Mothers Day Meal

    This year Fathers Day is held on Sunday 19th June 2022 (UK, US and Canada), and on Sunday 4th September 2022 (Australia and New Zealand).

    Vegan mushroom steak Diane is perfect for celebrating Father's Day. Why not treat your kids plant-based or vegan dad to a steak Diane meal for Fathers Day?

    Better still have the kids help to cook the mushroom steaks.

    They may even enjoy learning about the history of the dish as they cook. I know my kids do.

    Although mushroom steak Diane would be just as delicious for a Mother's Day brunch or simply for an everyday treat. In the UK Mothering Sunday is on the 27th March 2022 and on the 8th May 2022 in the US, Canada, Australia and New Zealand.

    How To Easily Prepare Vegan Mushroom Steak Diane

    garlic, shallots and stock
    Sauté the shallots or onions, and garlic in veggie stock.
    mushrooms in the pan with shallots.
    Pop in the mushrooms.

    Place a lid over the pan.
    mushrooms turned over in pan.
    Flip the mushrooms over.
    Four mushrooms cooking in pan.
    Add veggie stock, vegan Worcester sauce, soy sauce and mustard.
    Chopped parsley and cream added to mushrooms.
    Mix through the chopped parsley and vegan cream.
    mushrooms cooked and sauce thickened.
    Flip and using a spoon scoop the sauce over the mushrooms.
    Mushrooms ready to serve.
    Steak Diane is ready when the mushrooms are cooked and soft.

    Exact times depend on size and type of mushrooms used.
    vegan mushroom steak Diane served on white plate with side of asparagus and roast tomatoes.
    Serve with your choice of sides and an extra sprinkle of parsley.

    Above is roast asparagus and roast tomatoes. So Tasty!

    Vegan Mushroom Steak Diane Recipe Notes

    How do I store leftover mushroom steak Diane?


  • Keep leftovers fresh by storing in the fridge, covered, for up to 3 days.
  • How do I reheat leftover veggie steak Diane?


  • Reheat leftovers by adding to a pan and gently heating until piping hot. Add a tablespoon or two of veggie stock to loosen up the sauce if necessary.

  • Or reheat in a medium hot oven for around 15-20 minutes until piping hot throughout. Add a layer of kitchen foil or parchment paper to avoid the mushrooms browning or drying out.
  • Can I substitute the mushrooms for another ingredient?


  • Don't like mushrooms? Sub it out for vegan meat alternative pieces or tofu. Alternatively prepare the sauce without the mushrooms for topping cooked vegan burgers, sausages, etc.

  • Leave out the mushrooms and prepare the Diane sauce for a plate of veggies. Or chop up the mushrooms into very small dice for those who dislike the mushroom texture. Perhaps prepare the sauce with the mushrooms and then blend until smooth. My son dislikes mushrooms but he will eat them blended in a sauce which I try to do every now and then as mushrooms can be a great source of vitamin D.

    What can I serve with mushroom steak Diane?


  • Serve your mushroom steak Diane with anything that a usual steak would accompany.

  • Such as potato fries/chips/wedges, peas, corn-on-the-cob, baked potato, mashed potatoes, selection of veggies, or a crispy mixed salad.

  • I served my family's steak Diane with roasted asparagus and roasted tomatoes for a lighter dinner. I cooked both the asparagus and tomatoes at 180 Fan/ 200 Celsius/ 392 Fahrenheit/ Gas 6 for 15-20 minutes. Or until the tomatoes were soft and had burst a little, and the asparagus was fork tender.
  • Is vegan mushroom steak Diane suitable for gluten-free diets?


    Absolutely!

    With a few considerations steak Diane is perfect for gluten-free diets.

    Simply check that your veggie stock is gluten-free and that tamari soy sauce is selected over regular soy sauce as tamari is usually gluten-free.

    Also check that your vegan Worcester sauce is gluten-free or replace it with two extra teaspoons of tamari.

    Lastly do check all your ingredients packaging to be sure all ingredients are gluten-free.

    More delicious, quick and easy vegan meal ideas

    Easy vegan vegetable curry

    Vegan Traditional Corned Beef Tempeh Hash

    Vegan Smoky Tofu Traditional British Kedgeree

    Vegan Rice-A-Roni With Kidney Beans And Bell Peppers

    Vegan Carrot Hot-Dogs

    vegan mushroom steak Diane

    Vegan Mushroom Steak Diane (Creamy Sauce)

    Print Recipe
    Steak Diane is a classic retro dish that deserves to be re-created with plant-based goodness. Juicy mushrooms enrobed with a creamy savoury thick sauce.
    Serve with your favourite veggies or a fresh salad.
    Too Yummy!
    Course Dinner, Lunch, Main Course, Side Dish
    Cuisine American, British
    Prep Time 10 mins
    Cook Time 30 mins
    Total Time 40 mins
    Servings 4 or 2 larger portions
    Calories 158
    Author Jacq

    Equipment

    • Non-stick sauté pan/ skillet/deep fry pan with lid.

    Ingredients

    • 4 large flat mushrooms The label on my mushrooms stated 'British Flat Mushrooms' which are similar to Portobello mushrooms. Alternatively use any large mushroom or the equivalent in weight of a smaller type of mushroom.
    • 2 whole shallots Fine chopped. Or use a small-medium onion.
    • 4 whole garlic cloves or 2 teaspoons garlic powder. Fine chopped or minced.
    • 20 grams parsley ½ cup fine chopped. Plus a little extra for garnish.
    • 1 tablespoon Vegan Worcester sauce or replace with an extra tablespoon of soy sauce
    • 2 teaspoon tamari soy sauce or regular soya sauce
    • 1 teaspoon English mustard or Dijon mustard
    • 190 millilitre vegan cream such as Alpro soya single cream
    • 250 millilitre vegetable stock 1 cup. plus extra if required
    Metric - US Customary

    Instructions

    • Add the shallots and garlic to the pan.
      Pour in 125ml/½ cup of veggie stock.
      Bring to a simmer.
    • Add the mushrooms closed cap side down.
      Add a lid to the pan and cook for 5 minutes.
      (Begin prepping any accompaniments)
    • Remove the lid and flip the mushrooms over and cook for another 5 minutes.
    • Add an extra 65ml or ¼ cup of veggie stock if required to avoid the mushrooms sticking.
    • Pour in 125ml/½ cup of veggie stock, 1 tablespoon vegan Worcester sauce, 2 teaspoons tamari and 1 teaspoon mustard.
      Stir.
      Simmer for 5 minutes.
      Spoon some of the sauce over the mushrooms.
    • Throw in the chopped parsley and vegan cream.
      Stir and stew for 3 minutes.
      Flip the mushrooms over and stew for another 3 minutes.
      Spoon some of the sauce over the mushrooms.
    • Again turn the mushrooms over and stew for another 3 minutes. And scoop some sauce over the mushrooms.
    • Dish is ready when the mushrooms are soft which will depend on how large they are. And the Diane sauce is nice and thick. If too thick thin down slightly with a small splash of extra stock or cream.
      Serve sprinkled with a little more parsley.
      Cracked pepper is tasty addition but do taste the sauce before adding salt as it may be salty enough.

    Notes

    • Nutritional data is provided for guidance only and is not a strict calculation as ingredients vary.
    • Leftover mushroom Diane can be cooled and refrigerated, within a covered container, for up to 3 days. 
    • I wouldn't recommend freezing as the mushroom texture may be altered during this process, but if you have to freeze I would advice to freeze for up to 1 month.
    • To reheat, place in an oven-proof dish and reheat in a medium oven until piping hot throughout, about 15-20 minutes. Perhaps cover the dish with kitchen foil to avoid browning and drying out. 
    • Leftover mushroom Diane is tasty for lunch the next day, especially served with a wedge of crusty bread and a crispy side salad.
    • Try sprinkling some vegan grated cheese over leftovers and grilling until heated through and cheese melted.

    Nutrition

    Calories: 158kcal | Carbohydrates: 15g | Protein: 3g | Fat: 5g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Sodium: 106mg | Potassium: 529mg | Fiber: 2g | Sugar: 2.2g | Vitamin A: 434IU | Vitamin C: 9mg | Calcium: 31mg | Iron: 1mg

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    Reader Interactions

    Comments

    1. Mahy

      May 31, 2021 at 10:11 pm

      5 stars
      I got a bit hungry after reading your post. Can't wait to give the recipe a try now.

      Reply
      • Jacq

        June 01, 2021 at 9:12 am

        LOL! Reading recipes does that to me also! I end up soooo hungry 🙂

        Reply
    2. Beth

      May 31, 2021 at 10:09 pm

      5 stars
      Yum! This was such a lovely dinner and so delicious! My hubby and I enjoyed this dinner the other night. Definitely making this again soon!

      Reply
      • Jacq

        June 01, 2021 at 9:10 am

        So glad you both enjoyed the mushroom Diane 🙂

        Reply
    3. Sandhya

      May 31, 2021 at 10:08 pm

      5 stars
      These mushroom steaks look delicious and this will be great to make for the backyard barbecue. Love the creamy sauce and that will pair so well with the mushrooms.

      Reply
      • Jacq

        June 01, 2021 at 9:11 am

        These mushrooms would be amazing cooked on a BBQ and then topped with the Diane sauce. Think I will do that for our next barbecue. Could even make for a tasty veggie burger served on a bread roll. Thanks so much for the idea 🙂

        Reply
    4. Meenakshi

      May 31, 2021 at 9:03 pm

      5 stars
      Oh wow, these mushroom stakes look delicious! thanks for the recipe.

      Reply
      • Jacq

        May 31, 2021 at 9:19 pm

        Thanks! The mushroom steaks are definitely delicious 🙂

        Reply
    5. Kechi

      May 31, 2021 at 8:26 pm

      5 stars
      This mushroom steak looks incredibly delicious! WOW. Making it this weekend!

      Reply
      • Jacq

        May 31, 2021 at 9:20 pm

        Awesome. Hope you enjoy. These mushroom steak Diane's are perfect to enjoy at the weekend 🙂

        Reply

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