Easy Vegan Burger

mushroom lentil burgers

After perfecting our Vegan Brioche Burger Buns, here you have our amazing Easy Vegan Burgers to put inside the buns!

These last two months we have been spending way too much time at home, and something good had to come out of it. We miss our favorite gourmet burger restaurants so decided to invest some time on creating a delicious Vegan Burger packed full of nutrients that your body will love.

We are in love with this burger as it’s firm (we hate when getting served patties at restaurants listed as burgers), grillable and full of flavour. So, if you are making these burgers for non-vegans, no need to worry, they will definitely not complain.

The texture of the burger is perfect. To give our burgers a firm texture we used walnuts, mushrooms, pre-cooked brown lentils and breadcrumbs. The mushrooms we used for this burger are cremini mushrooms. You can use porcini as well, that would work nicely or even try experimenting with different types. The burgers can also be frozen so you can make a few more and leave them in the freezer for another day. It makes an easy weeknight meal if you already have them prepared.

Make this burger Gluten-free

If you can’t have gluten, you will be happy to know that the only ingredient you need to change in the recipe is the breadcrumbs for gluten-free ones. The rest of the ingredients don’t contain gluten naturally, but just make sure the mustard, flax seeds and oats are marked as gluten-free on the packet.

Ideas to combine your Vegan Burger:

  • Our Homemade Vegan Brioche Burger Buns. If you have time and want to make a complete gourmet burger, you will need a proper burger bun. We normally cook quite a lot when making them so we can freeze some for another day.
  • Choose the right sauce for the burger. We strongly recommend you try this creamy cashew sauce. It’s easy to prepare and it will give your burger such a rich taste. It is vegan!
  • Lemon and Rosemary Potato Wedges. These wedges can be prepared in 10 minutes and they are delicious. You can leave them baking in the oven while cooking the burgers.
  • Vegan Coleslaw. Whether you prefer to have the coleslaw on the side or inside your burger bun, it’s the perfect salad to have with this meal.
  • Delicious Funghi Fritti (mushroom fritters). These crispy mushroom fritters are an excellent option as a starter or side dish for your burgers. You can prepare the mushrooms beforehand and fry them while the burgers are grilling or cooking!


  • If you are using pre-cooked lentils, make sure to rinse them well and squeeze as much water out as possible before adding them into the mixture. If you don’t do this your mixture can end of sloppy.
  • To make an egg substitute, we use flax seeds with water. The ratio we use is one tablespoon flax seeds for 2 tablespoons of water. You will need to leave the mixture in the fridge for 10 minutes before using it.
mushroom lentil burgers
Print Recipe
5 from 9 votes

Easy Vegan Mushroom Burgers

Firm, grillable and delicious vegan burger that everyone will love, even non-vegans!
Prep Time20 mins
Cook Time10 mins
Course: Main Course
Cuisine: American, vegan
Keyword: burger, burger buns, lentils, mushrooms, Vegan
Servings: 5 Burgers


  • 200 gr pre-cooked lentils
  • 200 gr cremini / porcini mushrooms
  • 1/2 medium onion chopped
  • 1/2 cup walnuts
  • 1/4 cup oats
  • 1 cup breadcrumbs
  • 1 tablespoon flaxseed groundRe
  • 2 tablespoon water
  • 1 tablespoon mustard
  • 1 teaspoon smoked paprika
  • 1 teaspoon maple syrup
  • 1/2 teaspoon salt adjust to taste
  • 1 teaspoon pepper


  • Prepare your flaxseed “egg” by mixing it with the water and leaving it in the fridge for 10 minutes.
  • To a food processor, add the lentils, mushrooms, walnuts, oats, mustard, smoked paprika, maple syrup, salt and pepper. Blitz the ingredients together for a few minutes.
  • Remove the mixture and add it to a bowl. Add in the breadcrumbs, chopped onion and flax mixture. Combine all ingredients.
  • Shape into burgers that will be ready to fry or grill.


Store the burgers in the fridge in an air-sealed container to cook another day.
Alternatively, you can freeze them directly and cook from frozen.


  1. 5 stars
    I have not tried a burger I did not like. Meat, meatless, plant based or seafood. This looks like a great addition to the burger rotation.

  2. 5 stars
    What a lovely combination of flavours. I usually use red lentils in vegetarian burgers but here the combination of brown ones together with the mushrooms and walnuts pulls off such a nice colour you would guess it’s not plant-based from the first look.

  3. 5 stars
    I can only imagine the perfect taste these mushroom burgers have. I mean, mushrooms never fail when you want something extra tasteful. And the thickness of the burgers is just perfect!


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