(This venue is closed.) This bichak samsa was one of three varieties on offer. The other samsy, filled with lamb and beef, each had been given a different shape, a common practice to help staff keep track of what's what.
In response to my question "What is bichak?", the counterman did not explain that the word denotes a baked tricorner, known from the cuisines of North Africa, the Middle East, and Central Asia and here prepared by a Bukharian Jewish baker of Uzbek descent, with various fillings. Instead — apparently addressing what he perceived was my immediate question, and not incidentally saving himself the time and trouble of a comprehensive culinary overview — he identified the filling, "butternut squash." Come to think of it, at the moment, that's just what I wanted to know.
Bella Roza
63-52 Booth St. (63rd Dr.-63rd Ave.), Rego Park, Queens
718-275-0777
http://Bella-Roza-restaurant.business.site
Weekend hours unclear; best to call in advance