Place the fish fingers on a baking tray lined with baking paper without defrosting. Bake in the preheated oven (electric cooker: 225 °C/ convection oven: 200 °C/ gas: level 4) for 15-17 minutes. Turn once after 10 minutes.
In the meantime, moisten pita pockets with water, toast and cut in half. (If you like, you can also fill them according to the package instructions.) Cover pitas with salad mix and fish sticks. Drizzle with dressing and serve.