Formerly Le Café, the Beach Bar & Grill is deservedly popular with those wanting to eat outside their resorts. It's a simple thatched outfit, but has an impressive menu, with lots of excellent local seafood and an interesting blend of Fijian, Thai and French flavours in the offerings (if that sounds odd, we can attest that it works).
If you just want a drink, you're also welcome to prop up the bar.