Vegan mushroom burger

When Clemi and I were on honeymoon in Cambodia, we came upon a little restaurant serving mushroom sliders, and they were so heavenly! Since that day I have been trying to replicate the recipe, and I think this is as close as I will ever get!

Garnish and add any toppings you enjoy. I love adding a good tomato relish, fresh rocket, avo, vegan cheese, and vegan chipotle mayo.
Drool, am I right?

This is one of my favourite week night meals to make! You basically throw everything in a pan, then you get out your trusty food processor, form patties and refrigerate until you are ready to bake them in the oven, and it’s as easy as that!

This mushroom patty is seriously a juicy flavour bomb, the mushrooms have such a delicious earthy flavour, and they soak up all the tasty juices and spices while simmering away in the pan. It’s important to use brown mushrooms here, as the white mushrooms don’t have nearly as much flavour.  I love making a vegan chipotle mayo with my burgers, the recipe I’m sharing with you is tangy, ultra creamy, slightly sweet and a little bit spicy!

Form into 4 large, or 5 medium patties. If you find it too hard to shape them, add a few more tablespoons breadcrumbs.

I have made this burger a few times without the flaxseed mix, but I prefer the texture with it, it also holds together a lot better. I’ve stated it as optional, because it will still hold together and taste good if you don’t use it, but for best results, definitely include the flaxseed mix.

Vegan Mushroom Burger (makes 4-5)

Mushroom patty

  • 1 medium red onion
  • 2 cloves garlic
  • 500 g mushrooms (any brown mushrooms)
  • 2 tbsp soy sauce/tamari
  • 2 tbsp tomato sauce
  • 1 tbsp parsley
  • 1 tsp cumin
  • 1 tsp smoked paprika
  • a few drops liquid smoke (optional)
  • ¼ cup fresh dill or basil
  • Salt and pepper to taste
  • 2 tbsp ground flax seed, and 5 tbsp water (optional)
  • ½ cup walnuts
  • 1/2 cup rolled oats
  • 2/3 cup breadcrumbs
  1. Preheat the oven to 200C
  2. Add flaxseed and water to a cup and stir, set aside (we will use this as a binder later)
  3. Finely dice the onion and garlic, add to a pan with a good glug of olive oil and fry on medium-low heat until onions are soft.
  4. Roughly chop mushrooms (we will blitz them in a food processor later)  and add them to the pan, stir 5 mins.
  5. Add the soy, tomato sauce, spices and a few drops liquid smoke (if using) Stir so everything is combined.
  6. Crank up the heat to medium-high, now we want the mushrooms to start releasing all their juices (it will look very watery)
  7.  Give it a stir every 5 mins or so until the mushrooms have soaked up almost all the juice and sauce (I have added a photo above so you have reference) This process will take about 25 mins, then set aside to cool down and taste for seasoning.
  8. Add walnuts, oats and breadcrumbs to a food processor and pulse, we still want it to maintain texture, then transfer to a large bowl.
  9. Add flax mix to the food processor with half the mushrooms, pulse until just combined (we don’t want it becoming a paste) and add to the bowl of dry ingredients. Repeat with remaining mushrooms.
  10. Finely chop Dill/Basil and add to the mixture. Mix everything together well, I like using my hands.
  11. Form balls with the mixture, then flatten and shape between your hands (If you’r finding it sticks to your hands too much, add 1 tbsp breadcrumbs until it’s easer to shape) Place on a baking tray brushed with olive oil/spray.
  12.  Cover the patties with foil and leave in fridge for at least 30 mins or leave for later.
  13. Remove the foil and transfer the baking tray to the oven, bake for 25 minutes, flip carefully halfway through.
  14. Remove from the oven and allow 5 minutes cooling time for the patties to firm up before any handling.
  15. And you are done!

Vegan chipotle mayo (makes enough for 5 burgers generously)

  • ½ cup avocado oil/ canola oil
  • 1 tbsp olive oil
  • ¼ cup soy milk
  • 1 tbsp maple syrup (honey if not vegan)
  • 3 tsp freshly squeezed lemon juice
  • 2 tsp chipotle seasoning
  • 2 tsp apple cider vinegar
  • Sea salt to taste
  1. Add all ingredients to a blender cup, place your immersion blender inside and give it a few pulses. Once the mixture has started emulsifying, move the blender up and down to incorporate any oil that is still at the top.
  2.  Garnish burger with mayo, or  keep stored in the fridge in an airtight container.