• Defrost French pastry.
• Cut into two halves, then roll out each sheet.
• Cut salmon to small pieces (once along and six times transverse).
• Prepare spinach.
  • Cut onion and tomatoes.
  • Fry the onion.
  • Add spinach, garlic, and tomatoes.
  • Mix all the ingredients.
  • Pour a little bit of water and stew for a 12-15 minutes under cover.
• Put salmon pieces on french pastry (1 sheet of pastry = 1 piece of salmon).
• Put prepared spinach on the fish.
• Cut the pastry as shown in the picture, and roll.
• Smear each roll with egg.
• Bake at 220 degrees for 20 minutes.

Picture shows how to cut the pastry and fold it. Picture source: http://redandpale.blox.pl.