1
Cook the lentils al dente in 10-15 minutes. Drain the lentils. Cook the sweet potato al dente and leave to cool. Roughly grate the sweet potato.
2
Mix the lentils, sweet potato with the parsley, cumin, paprika powder, egg and flour. Add additional flour if the mixture is too sticky. Shape the mixture into small burger patties.
3
Cut the onion into half rings and the avocado into slices. Fry the burgers on both sides until golden brown. Meanwhile, sauté the onion in a tablespoon of olive oil.
4
Top the bun with the patties, onion and avocado. Enjoy your meal!