She beat her own husband in Round 1, then beat Bobby Flay with empanadas, then dedicated the win to Latina and female chefs everywhere, which makes S22E10 one of the most complete narrative arcs in the show's run. Rosana Rivera — the first Latina woman to beat Bobby Flay — is currently building the Chef Rosana lifestyle brand, which is a platform built on the credibility she earned in the room.
Rivera's empanada dough is the foundation: cold butter cut into flour until the mixture resembles coarse sand, then ice water added by the tablespoon until the dough just comes together — no more, or the gluten tightens and the dough shrinks back when you roll it. She bakes rather than fries, which is the higher-difficulty move in competition because the oven finish gives you no visual cues until the last three minutes. Her filling is a sofrito-based beef composition that is chilled before filling — a cold filling on warm dough means the dough doesn't steam and the seal holds.
The win is documented, the dedication is on record, and the brand is growing. Bobby Flay, to his credit, has had the grace to lose to someone who deserved to win.