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lentil walnut burger buns with creamy cashew pesto

It's a patty and a bun all in one. It's lentil walnut burger buns! Fill your burger / sandwich with fresh veggies of your choice and dollop this delicious creamy cashew pesto on both sides and you've got yourself one healthy and filling meal.

Course Main Course
Cuisine American
Keyword creamy pesto, lentil walnut buns, lentils, vegan buns, walnuts
Prep Time 31 minutes
Cook Time 33 minutes
Total Time 1 hour 4 minutes
Servings 4 small burgers
Author Lauren Toyota


lentil walnut burger bun ingredients:

  • 1 C finely chopped onion about 1 onion
  • 3/4 C finely chopped carrot about 1 carrot
  • 2 roughly chopped garlic cloves
  • 2 tbsp vegetable oil or olive oil
  • 1 C cooked or canned lentils
  • 1/2 C raw whole walnuts
  • 1/4 C buckwheat flour
  • 2 tbsp nutritional yeast
  • 1 tsp dried parsley
  • 1 tsp onion powder
  • 1/2 tsp sea salt
  • 1/4 tsp cumin
  • 1/4 tsp smoked paprika
  • 1/4 tsp coriander
  • 1/4 tsp ground pepper
  • vegan cheese slices for stuffing in the burger buns optional

creamy cashew pesto ingredients:

  • 1 C raw whole cashews soaked 20 minutes in hot water
  • 1/3 C unsweetened non-dairy milk
  • 2 tbsp lemon juice
  • 2 garlic cloves
  • 1/2 C packed basil leaves
  • 1/2 tsp sea salt
  • 1/4 tsp ground pepper


  1. Drain and rinse cashews from the soaking water and add to a high-powered blender with the remaining ingredients for the cashew pesto. Combine until very smooth and refrigerate until ready to serve the burgers.
  2. Preheat oven to 400 F
  3. Heat oil in a pan over medium heat and cook onions, carrots, and garlic for about 7 to 8 minutes until softer and slightly browned and caramelized. Add this mixture to a food processor with lentils and walnuts and process until it's a fine mince and nearly smooth.
  4. Add the remaining ingredients for the burger buns and process until a smooth dough forms.
  5. Lightly oil your hands to form patties. You'll use about 1/4 cup of the mixture for the whole patty. If you're going to stuff it with a vegan cheese then take half of that amount for one patty and flatten it in your hand, place cheese in the centre and then form the other half of the dough over top and create a well sealed patty flipping it back and forth in your hands and pressing the edges together.
  6. Place the burger buns on a parchment lined baking sheet and bake for 25 minutes flipping half way through.
  7. To serve spread cashew pesto on one side of a burger bun, add toppings of your choice and place another burger bun on top.  Serve immediately.