Combine the sage, potato, lemon zest, sausages, cheese and 2 heaped tbsp of flour in a bowl. Season. Shape the mixture into 8 patties and dust with remaining flour.
Heat the oil in a large frying pan over medium heat. Cook the patties for 3-4 minutes each side until golden.
Meanwhile, place the shredded greens in boiling water and simmer for 2 minutes. Drain well. Serve patties hot, with cranberry sauce and greens.
See more Leftover recipes
For top tips on protecting you and your family when preparing raw meat and poultry, visit Food Safety in the Home and view the full Food safety at home video.