Sugarmill is great and I think their beach bar is even better in terms of service and definitely price. Check out it (Tramonti) out!

On the north shore, I also recommend D'Coal Pot for lots of great Caribbean food options.

Be sure to stop at Stoutt's Lookout for a drink and to take in the views of CGB. In CBG, Quito's probably has the best food currently but also give Banana's and Paradise Club a shot. We like Paradise Club for lunch because it's quieter during the day.

If you haven't been to Smuggler's Cove, go there and check out that beach for a day. Have drinks with Nigel and lunch with Patricia. Same goes for Brewer's Bay if you haven't been there yet. Nicole's is the only place open and has drinks and sometimes lunch.

Where are you staying?