Olivier Martinez and Halle Berry
10/16/2012 at 06:00 AM EDT
and fiancé Olivier Martinez
shared a romantic dinner at Fig & Olive in West Hollywood on Saturday.
"Halle looked spectacular," an onlooker tells PEOPLE. "She was lovely."
Sitting in the upstairs patio that overlooks the main dining room, the couple sampled dishes from Executive Chef Pascal Lorange's new fall menu including jamón ibérico, truffle risotto, sautéed spinach with fig, garlic and Marcona almonds.
They paired the dishes with glasses of white wine and Rosé.
Berry's latest film, Cloud Atlas
, costarring Tom Hanks and Hugh Grant, opens in theaters Oct. 26.
– Jennifer Garcia