Grilled fish is one of the best tasting foods around. Fish grilled on ember is perhaps not the healthiest foods, but who wants to live forever? :)
Fish can be grilled on barbeque, on grilling pans, stone plates etc. Non-stick grilling pans are similar to frying pans and fish prepared in such way doesn't taste as good as barbequed fish, but since there is no oil dripping on ember (actually, no ember at all), fish prepared this way is much healthier.
Branzino (Italian pl. Branzini) or European Sea Bass can be quickly prepared in non-stick grilling pan. It's taste is great, especially when grilled with some herbs and spices - not as good as barbequed sea bass, but much healthier.