Step 1 To make the dressing, place the yoghurt, lemon juice and tahini in a small bowl and stir to combine. Season with salt and freshly ground pepper, then set aside.

Step 2 Place the mashed potato, lentils, curry paste, spring onion, egg and breadcrumbs in a large bowl. Season with salt and pepper. Use your hands to bring the mixture together.

Step 3 Divide the mixture into 4 patties, using additional breadcrumbs to help shape the patties.

Step 4 Heat the oil in a large frypan over medium heat. Cook the patties for 2-3 minutes each side or until golden and warmed through.