For the zucchini gnocchi with sage butter and parmesan, finely grate the zucchini, mix with salt and let stand for at least 30 minutes, then wrap in a tea towel and squeeze well.
Mix zucchini grates and cream cheese and gradually add pasta semolina until a compact, elastic dough is formed. Knead with mixer on high speed for 5 minutes. Add a little pasta semolina if necessary.
Let the dough rest in a small, covered bowl in the refrigerator for about ½ hour. Meanwhile, cut the sage leaves into noodles. Divide the dough into 4 pieces, roll each piece into a sausage about the thickness of a finger.
Cut 1 cm long pieces from the sausages, dust with flour and press furrows into them with a fork. Melt butter in a pan and fry sage leaves until crisp.
In a large enough pot, bring water to a boil, cook gnocchi in it until they rise to the surface. Skim the gnocchi with a slotted spoon and immediately toss them in the hot sage butter.
Serve with grated Parmesan cheese.