This healthy but substantial dish is ready in just half an hour, perfect for a midweek meal for two
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Available all year, mackerel is a really good-for-you fish with high levels of omega 3. Very fresh whole mackerel will be stiff and firm with glassy eyes and red gills; as the fish ages it will soften. Mackerel fillets are also widely available – you will pay £2-£3 for four.