Pork neck with sticky rice at Cassia Thai Restaurant for $9.34. The USD has seriously slipped against the Namibian dollar! Online, there's a woman who complains bitterly about some fish she ate here that made her very sick, but my three visits to Cassia were fine. During my five months in Namibia, I had the best food at Cassia and Old Location in Windhoek, and Cartel Food Truck (for its outstanding burgers) in Swakopmund.