The singer, 33, teased a glimpse of her midriff in a black camisole with white lace detailing. She teamed the look with a cosy green striped cardigan and a brown shearling jacket.
Rihanna combined casual with glamour as she sported green joggers but tottered into the restaurant in white pointed stilettos. She accessorised her outfit with khaki sunglasses, a delicate gold necklace, a green handbag and a black face mask.
The Italian eatery appears to be a popular choice for the fashionista, who has been pictured dining at the restaurant three times this week, having visited Giorgio Baldi on Sunday and Tuesday night.
Apart from dealing with her Fenty fashion ventures, the singer has recently been spending time with fellow musician ASAP Rocky. The now-couple maintained a close friendship in the early stages of the rapper's career, and he served as Rihanna's opening act for part of her 2013 Diamonds World Tour.
Neither Rihanna nor ASAP Rocky have commented on the nature of their relationship as of yet.