For the lentil stew with cabanossi, bubble the lentils with the ham bone in the soup. After 15 minutes, remove the bone and add the diced greens. Chop the marjoram, mix with the pressed garlic and lemon zest and add to the soup as well.
Let soup simmer gently for another 15 minutes. Cut the cabanossi into slices. Peel and halve the onions and cut them into tender strips. Roast in clarified butter for 8-10 minutes until golden brown. Add cabanossi to the stew and season with vinegar and pepper.
Sprinkle the lentil stew with cabanossi with fried onions and the chopped parsley and bring to the table.