Fish is an excellent source of healthy omega-3 fatty acids, but it's easy to dilute what good you get from it by deep-frying it or cooking it in pools of butter.
A better way to get plenty of flavor without sacrificing the health benefits is braising. This simple cooking technique involves a quick sear in a hot pan, followed by a slow simmer in a flavorful liquid, such as stock, wine, or even beer.
When braising, cooking times should be adjusted according to the main ingredient - shorter for delicate vegetables and fish, and longer for tougher meats and poultry.