We've used banana prawns and ling for this easy Sri Lankan-style curry. You can use any firm white fish you like and a prawn variety that suits you (or none at all - it'll still be super delicious just with fish).
Thai-style fish cakes are a classic, and for good reason, they’re delicious! Most white fish varieties work perfectly for this recipe. We used Ling here, but; Elephant, Gurnard, Tarakihi or Moki would all be perfect.