Peel and finely chop the onion. Peel carrot and turnip and cut into small cubes. Drain crayfish tails. Heat butter in a pan. Fry the diced vegetables and crayfish tails for about 5 minutes, turning them over.
Add the cognac and flambé. Add tomatoes, wine and fish stock. Season with salt, pepper and paprika. Cover and stew for about 1 hour.
Dice the salmon fillet and carefully stir in about 10 minutes before the end of the cooking time. Season again with salt, pepper and paprika. Bake pies in a preheated oven (electric cooker: 150 °C/ convection oven: 125 °C/ gas: see
manufacturer) warm up for approx. 5 minutes. Take out, cut off lid. Fill the pies with the tomato and fish ragout. Put the lid back on. Garnish with chervil if necessary.