Grind/chop pecans the size of coarse cornmeal.
Add cajun/creole/nawlins type spice to taste.
Press mixture into room temperature fillets.
Sautee (in oven friendly sautee pan) in butter and a bit of oil to prevent butter from burning (I like grapeseed oil) for about one minute per side.
Transfer to 350 degree oven until done to your liking.
SA is everything.
Know thy equipment.
Do it right the first time.