I'm replying to help bump this as well.
But, the lack of replies is probably b/c many more people go there for breakfast, which is excellent, than lunch. The lunch crowds I have observed there are usually smaller, and lean toward people attending seminars/conventions at the hotel.
You could the check the Swan Dolphin website, to see if the lunch hours are listed there, in the dining section. Lunch food I can't comment on, but breakfast is still excellent.