Rasstegai are traditional Russian open-topped yeast pies designed to showcase savory fillings while remaining economical. To minimize costs, salmon offcuts, tinned fish, or budget-friendly frozen white fish are all fully suitable when combined with sautéed onions and rice.
For the structural integrity of the dough, use a standard yeast ratio of approximately one part liquid (such as warm milk or water) to two parts flour, along with a bit of butter, sugar, yeast, and salt.
To shape them, roll the dough into small rounds, place filling in the center, and pinch the edges together into an oval boat shape while leaving a gap open at the top.
Bake at 190 degrees Celsius for 20 to 25 minutes until golden brown.