articleThe Brief Costco's Kirkland Signature brand poke tuna was recalled after green onions in the product tested positive for listeria. A recall has been issued for Kirkland Signature brand Ahi Tuna Wasabi Poke sold at Costco stores due to potential listeria contamination. Where was the recalled poke tuna sold? What you can do:The FDA is advising consumers not to eat the poke tuna product and throw it away immediately and visit their local Costco for a full refund. The Source: Information for this story was provided by an FDA recall notice letter.