Wash the lamb, dab dry and cut into small cubes. Clean and wash the fennel and put some green aside for garnishing. Cut the fennel into fine strips. Cut dried tomatoes into pieces.
Peel onion and garlic. Dice onion, chop garlic finely. Heat the olive oil in a roasting pan or casserole. Fry the meat well, turning it over. Finally add onion and garlic, braise briefly and season with salt, pepper and rosemary.
Pour in red wine and stock, add fennel and bring to the boil. Cover and braise over low to medium heat for 1 1/2 -2 hours. (Meat should almost fall apart, sauce should be thickly braised) Put pappardelle in plenty of boiling salted water and cook according to package instructions (6-8 minutes).
Pour the pasta onto a sieve and drain. Season the lamb sauce with salt and pepper and serve with the noodles. Sprinkle with fennel green.