Preheat the oven to 190°C and oil a baking dish.
Rinse the fish fillets and pat dry with a tea towel.
Put the nuts in a food processor and pulse until they are crushed (but not pulverized).
Place the nuts in a bowl with the breadcrumbs, parsley and chives and mix well.
Using one hand, coat each fillet in butter and then roll in the nut and herb coating.
Transfer the fillets to the baking dish and drizzle with olive oil.
Bake in a preheated oven for 20 minutes or until the fish is firm and flakes easily.
Serving Suggestions: Serve with potatoes and peas, or a lettuce salad and garlic bread.