While the cutlets are being fried, prepare everything else for cooking the cutlets. Cut red onions, tomatoes and pickled cucumbers into thin rings, mix yogurt with creamy horseradish, cut lettuce leaves into convenient pieces with your hands. The edges of rye bread can be quickly warmed up on a baking rack and a burger can be assembled no less quickly: lightly grease the bread with yogurt sauce, put lettuce leaves, hot cutlet (for convenience, it can be cut in half lengthwise), tomato and cucumber, also grease the bread with sauce on top, cover and eat with pleasure!