Peel, wash and quarter the potatoes and cook them in salted water for about 20 minutes until soft. Peel onions and cut into thin rings. Clean, wash and shake dry endive salad. Halve leaves lengthwise and cut them coarsely into pieces, except for the lower approx. 2 cm of the midrib. Cut the ends of the mead into slices
Heat milk and 25 g butter in a saucepan. Drain the potatoes. Add milk mixture and mash to a coarse puree. Season the puree with salt, pepper and a little nutmeg
Heat the oil in a pan. Fry the slices of sausage and onion rings in it over a low heat for 4-5 minutes, stirring occasionally. Heat 1 tablespoon butter in a wide pan. Fry the salad for 2-3 minutes, season with salt, pepper and nutmeg and fold into the purée. Arrange the puree on plates. Add slices of sausage and onion rings