Coarsely grate the zucchini. Heat the butter in a pan, add grated zucchini, cook for 2 minutes, stirring. Combine cream cheese, parmesan, milk, garlic and mint/basil in a food processor and process until smooth. Pour processed mixture into the zucchini in the pan, heat while mixing well, until hot but not boiling. Remove from heat and cover.

Cook pasta until tender, drain and mix lightly with the sauce. Serve with extra grated parmesan cheese.