Always buy really fresh fish and seafood: look for bright-eyed fish when plump flesh and bright undamaged skin; they should not smell “fishy” but should have a faint aroma of the sea. Store fish and shellfish, covered, towards the button of the refrigerator, and use within a day of purchase.
Oily Fish: The rich flesh of oily fish is tasty and rich in omega 3 fatty acids, which are an essential part of a healthy diet. Oily fish are also usually cheaper than other fish.
Mackerel: These very economical fish have iridescent skin and quite firm, brownish flesh.
Salmon: Wild varieties tend to be very expensive, so only eat them occasionally. If you buy farmed salmon, check that it is from a reputable supplier. Canned salmon can be used in pasta and rice dishes.
Sardines: Wild varieties tend to be expensive, so only eat them occasionally, if you buy famed salmon, check that it is from a reputable supplier. Canned salmon can be used in the pasta and rice dishes.
Whitebait: These are the small fry of herring and sprats and taste excellent fired and eaten whole.
Rich, meaty fish: This group of firm-fleshed fish has a meaty texture and includes monkfish, red muller, seabass, swordfish and tuna. They are often expensive, so look out for special offers in the supermarket or fishmongers. Canned tuna makes a good, cheap alternative to fresh tuna and can be used in omelettes, salads and pasta dishes.
White fish: These fish firm yet delicate white flesh and are excellent cooked simply with subtle or piquant flavoring.
Cod: Stocks of cod are diminishing due to overfishing, so check whether the fish comes from before buying. Hoki or pollard are much cheaper and make good alternatives.
Haddock: This flaky fish can also be used instead of cod Smoked haddock is delicious and avoid the bright yellow dyed variety and go for the paler, undyed version.
Halibut: This flat fish is very good value and tastes a bit like turbot. Do not overcook it, or the flesh will become dry.
Sea Food: This group includes mollusks, such as mussels, crustaceans, such as crabs and prawns and squid. Store in the refrigerator and use within 2 days.
Crab: This is available raw ready-cooked or in a can, fresh crab is relatively expensive, so use canned crab in baked pasta or rice dishes as a cheaper alternative.
Squid: This economical seafood is available all year. It needs to be cooked either very quickly or very slowly.