Roast the pine nuts in a pan without fat until golden brown, remove and let them cool down. Peel oranges so that the white skin is completely removed. Remove the fillets with a sharp knife between the parting skins.
Squeeze the juice out of the separating skins and collect it. Wash mint, shake dry and pluck leaves. Clean watercress, rocket and spinach, wash and drain well in a sieve. For the vinaigrette, mix orange juice and vinegar.
Fold in 3 tbsp. of oil drop by drop. Season to taste with salt, pepper and sugar.
Wash the fish, dab dry and cut into 12 small pieces. Turn the fish pieces in a little flour, tap carefully. Season fillets with salt and pepper, sprinkle with lemon juice. Heat 2 tablespoons of oil in a large, coated frying pan.
Fry the fish for 2-3 minutes on both sides.
Mix oranges, mint, rocket, watercress, spinach, pine nuts and vinaigrette. Arrange the salad on the plates. Arrange 3 fish pieces on each plate.