Rinse and drain the quinoa in a fine-mesh sieve. Place it in a medium-sized pan with the vegetable stock. Bring it to the boil then simmer for about 15 minutes until cooked. Adjust the liquid level by adding more water if necessary. Once cooked, drain any excess liquid and leave to cool for a while until it stops steaming and is cool enough to handle.
Rinse and drain the green lentils and place them into a large bowl with the chopped walnuts, then add the cooled quinoa.
Add the parsley, garlic, onion powder, paprika, chives, ginger root, lemon juice and season to taste.
Mix the ingredients together with your hands or a spoon until combined.
Now add the gram flour and stir in using a spoon until all the mixture is covered.
Split the mixture out into 5 portions. Use your hands to lift out one portion of the mixture and form into a large ball. If you have an egg ring, place it on a clean chopping board, place the formed ball inside of it, then use your hands to press down until flat and you have an even surfaced burger patty shape. If you do not have an egg ring, simply do this with your hands. Continue with all 5 burger portions.
Heat the oil in a large frying pan and place each burger patty into the oil over a low-medium heat. Cook on each side for about 2 minutes to seal. If you have a smaller frying pan, simply add less oil and fry the number of patties which can fit into the pan until you have fried all 5.
Place the fried burger patties on to a baking tray and bake them all in a pre-heated oven at 180 degrees C for 15 minutes until cooked through and crispy.
Serve the burgers on a bun with your favourite toppings! See suggestions above!
Notes
You can make the burger mixture a day ahead and keep it in the fridge to cook the following day.