Set the pasta to boil.
Remove the leaves from the cauliflower and divide it into small florets. Put the cauliflower in the pot with the pasta and let it boil together for about 10 minutes in total.
Preheat the oven to 200 degrees Celsius (392 degrees Fahrenheit).
Finely chop the onion and grate the zucchini, put it in an ovenproof dish along with the ham.
Drain the pasta and cauliflower of water, but save a bit of the water. Add the pasta and cauliflower to the dish.
Mix the sour cream with the spices, cheese, parsley, grated cheese, and cooking water – pour the mixture into the dish and mix everything well together.
Top with grated cheese and cook it for about 15 minutes in the oven, until the cheese is golden.
Serve with a green salad on the side and fresh parsley on top.