Yes, you're correct! In the sentence you provided, "cliched" refers to goods that are commonly and repeatedly associated with the Mediterranean region. These goods, such as olives, olive oil, wine, and the humorous mention of "mustachioed plumbers," are seen as stereotypical or overused representations of what the Mediterranean produces and is known for. The term "cliched" indicates that these goods have become somewhat predictable or unoriginal symbols of the region.