For the vinaigrette, mix yoghurt, jelly, vinegar, salt and pepper, gradually fold in 2 tablespoons of oil
Cook the lentils in 1 litre of boiling water for 10-15 minutes, drain. Peel and wash carrots and cut them into fine cubes. Clean, wash and cut the celery into strips. Heat 1 tablespoon of oil in a frying pan. Steam the carrots and celery for about 3 minutes. Wash the salad and drain well. Cut the sausages in half. Wash chives, shake dry and cut into small rolls
In a large bowl mix salad, carrots, vegetables, lentils and sausages, drizzle with some vinaigrette. Sprinkle with chives. Serve immediately and sprinkle the rest of the vinaigrette with pepper