Sidebar. I myself will be there tomorrow for my usual Friday lunch!
I also like Grand Tavern, but it's bit further down from the main attractions.
If it happens to be sunny and warm, sitting outside at Boot & Shoe or Holy Land is always nice. I am Ikaros'ed out, but their gyro is also nice to enjoy outside.
Earlier this week had a very nice lunch at Lin Jia, so if you're in the mood for Chinese...
Coach has a good lunch, but I can never return there because my rubber arm is easily twisted and it's hard to roll uphill home after all the sake.