My go to recipe is from Derek on Cast Iron. The only requirements are fish, olive oil, salt, pepper, and cast iron. Sometimes I substitute butter for the olive oil. If I have bacon grease available I’ll use that instead. The whole procedure takes about 10 minutes.
I consider a good piece of salmon and a sourdough baguette to be a complete meal. If the fish is less good, I’ll peel the skin off, dump it on top of a bowl of Single Shot Rice, mash it all together, and sprinkle furikake on top.