Not vegan

precooked mackerel fillet is classified as animal-derived by the local ingredient taxonomy.

Names you may see on a label

esikypsennetty makrillifileefilets de maquereaux précuitsfiletto di sgombro precottovorgegartes Makrelenfilet

How to verify it

If this ingredient appears in the recipe rather than a precautionary trace statement, the product is not vegan.