March 11, 2011 - IT was a case of stick with what you know for Rihanna on Wednesday night when she visited her favourite Sydney restaurant Beppi's for the fourth time in a week.

After three visits last week and an attempted meal on Sunday night (alas, the East Sydney diner was closed), RiRi returned again this week after her taping of Chelsea Lately.

This time she dined on scampi, a plate of gnocchi and pasta casareccia.

"She has a healthy appetite for someone so slim," one diner said.