Wash the kale thoroughly, drain and blanch in boiling water for 3 minutes. Drain on a sieve. Peel and wash the carrots and cut them into thin sticks. Cut the smoked pork loin into cubes.
Peel and chop the onion. Heat the oil in a pan. Brown the meat in it and take it out. Add carrots and onion to the frying fat and fry briefly. Cut kale into strips and add to the carrots.
Deglaze with broth, add meat and cook for 5 minutes. Put spaghetti in plenty of boiling salted water and cook for 10 minutes. Add cream and mustard to vegetables, stir in. Bind with sauce thickener, bring to the boil again.
Season to taste with salt and pepper. Drain the pasta and serve with the sauce.