Line a baking tray with aluminum foil and then a sheet of butter paper.
Place a crepe on the butter paper, spread a generous amount of sauce on it.
Place some chicken filling on it.
Cover with the second crepe.
Continue stacking until all the filling, sauce and crepes are finished.
Finish the stacking process with a final layer of crepe on the top.
Cover with aluminum foil and seal the sides. Bake in the preheated oven (200C) for 15 min.