Place the leek and all the other ingredients up to and including the pepper in the casserole dish, mix.
To braise in the oven
Cover and cook for approx. 1 hr. in the lower half of an oven preheated to 160°C. Remove the bay leaf and rosemary.
Cook the pasta in boiling salted water until al dente, drain. Mix the pasta with the leek and cooking liquid, scatter the parmesan on top.