Preheat oven to 425 degrees F. In a medium bowl, stir
together the nuts, panko, flour, and butter. Set aside.
Place a piece of aluminum foil on a baking sheet and brush it
liberally with vegetable oil. Place the mahi mahi on the foil
and sprinkle each fillet with salt and pepper on both sides.
Bake for 5 minutes. Remove from the oven and brush each fillet
with the coconut milk. Divide the nut mixture among the tops of
the 4 fillets, patting the mixture to spread and adhere to the
fillets. Return to the oven and bake for 5 to 10 minutes, or
until the crust is golden brown.
Remove from the oven and allow to stand 10 minutes before