If you want fine dining in Treasure Island then try the Pearl, on Central Avenue.
I believe we were a party of eleven. Our drinks came out promptly, and then we ordered. There was the regular menu, and a $15 early bird special. Several drinks were on that menu too, for $5.
All meals came with a salad and bread. We were on a tight timeframe so I only got to try my smoked salmon pasta. I had half of it at lunchtime, and will finish it tonight.
Everyone seemed pleased with their dining experience.
I will list the full address, the phone number, and a link once I am home.