Costco’s Ahi Tuna Wasabi Poke Is Recalled: More than 33-hundred pounds ofAhi Tuna Wasabi Pokesold under Costco’s Kirkland Signature brand have been recalled because of potential listeria contamination. Western United Fish Co. announced the recall on Saturday after its green onion supplier reported a positive listeria test result on September 17th. The company said it is working with its green onion supplier to find the cause. No illnesses have been reported. The affected product was packaged in clear plastic clamshell containers with the Kirkland Signature brand label with a pack date of September 18th and a sell-by date of September 22nd.