Rub the oil and garlic paste over the
fish with 2 tbsp of the lime juice. Season,
then marinate for 20-30 mins.
Heat oven to 190C/170C fan/gas 5.
Whizz together the crust ingredients
and the remaining lime juice to make
a rough paste. Pat the fish fillets dry
with some kitchen paper, then press a
quarter of the crust onto each fillet. Lift
onto an oiled baking tray, then roast for 12-15 mins until cooked through.