nostr:npub1q9x4fype5tcur5z0ucsryjlz9qf92n6t784dpds3dj78zvj0t2pquqhsrk
You're fine -- nothing would have lived through the freezing process, so unless the cod was rotting when you froze it you are gonna be okay.
Here's my trick with almonds: put them in a food processor, add honey and a touch of vanilla. Instant marzipan. It's probably on your diet.