Preheat oven (electric cooker: 200 °C/circulating air: 175 °C/gas: see manufacturer). Melt 3 tablespoons of butter in a small pot. Grease 4 non-adjacent depressions of a muffin tray (12 depressions).
Cut the dough sheets into about 10 rectangles each. Spread 5 dough sheets each with liquid butter and place in 1 trough each. Bake in the oven for 10-12 minutes. Remove from the oven and leave to rest in the tray for about 5 minutes.
Then remove from the mould.
Rinse salmon fillet, dab dry. Heat the oil in a pan. Fry the fillet on each side for about 3 minutes. Season with salt and pepper. Wash the dill, shake dry, pluck the flags and cut finely.
Mix crème fraîche, lemon juice and dill. Season to taste with salt and pepper.
Clean, wash and shake the salad dry and cut into fine strips. Tear salmon fillet lightly. Fill the filo basket with salad, salmon and dill cream. Sprinkle with coarse pepper.