Roll half of the dough thin, place on the greased baking sheet.

Spread the surface with cooked rice mixed with sautéed cut onion, then slice filleted fish, cover with melted butter, salt and put one more rice layer. Cover the filling with another the layer of the remaining dough, rolled flat, and pinch edges.

Brush the pie with egg, garnish with fancy shapes of dough, leave to stay, repeat brushing, and then make some fork pierces on the top.

Bake in the oven for 40 minutes at 428 °F (220 °С).