Preheat the oven to 200 degrees top and bottom heat.
Rinse the fish fillets, pat dry, remove any bones. Season with salt, pepper and lemon juice and place in a greased ovenproof dish.
For the crust, finely chop the herbs, mix with the panko, parmesan, lemon zest, garlic and oil until you have a homogeneous mixture. If necessary, add a little more oil. Spread the mixture over the fish fillets. Bake on the middle rack in the oven for about 10 to 15 minutes, depending on the thickness of the fillets. Possibly turn on the grill for two to three minutes at the end.