There is no canonical "gypsy-style roast beef" with defined ingredients. The term "gypsy-style" (more respectfully, Romani-style) refers to a loose family of cooking traditions among the Romani people—historically nomadic, now widely settled across Europe and the Americas—not a specific dish.
Traditional Romani cuisine reflects adaptation: one-pot meals cooked over open fire, using portable, shelf-stable, or foraged ingredients. Think stews (bori, goulash variants), grilled meats (frigărui), flatbreads, and preserved foods. Beef is less common than lamb, goat, pork, or poultry in many communities.
Whole-cut roast beef requires an oven, time, and a stationary kitchen—conditions at odds with historical Romani mobility. Some settled communities adopted local roast traditions (British Sunday roast, Hungarian rostély), but these are borrowings, not a distinct "gypsy style."
Modern recipes marketed as "gypsy-style roast beef" typically mean:
This is essentially a Central European pot roast or svíčková variant—not a Romani cultural dish. The label is marketing, not ethnography.
"Gypsy" is widely considered a slur by Romani people. Use "Romani," "Roma," or the specific community name (Kalderash, Lovari, Sinti, etc.). Their culinary heritage is rich and diverse—worth exploring on its own terms, not through a stereotyped menu item.