Pan-seared cod is a simple, easy way to enjoy codfish. If you know how to pan sear cod, you can use that skill with other fish.
Salt cod fritters, Spanish style. Called bunelos de bacalao in Spanish, you can make these with any salted fish.
A recipe for Basque cod al pil pil, made by shaking a pan with olive oil and garlic in it to emulsify into a magic sauce. Do this with any white fish.