I recommend Xiao Nan Ji, a local Shenzhen dai pai dong (street food stall) – it's super delicious, but go early as there's always a queue. For tong sui (sweet soups), both it and 'Foshan Huang Shifu' next door are better than Baicaotang. The Tom Yum Goong Thai food there is good. 'Xin Luo Shuo' next door has decent Luosifen (river snail noodles). 'Liang Shan Bo' for Shandong cuisine offers generous portions at good prices and is pretty tasty. Near Sea World, there's 'Shunde Fishing Village' – you can order almost anything there without disappointment, though it's a bit pricey. For hotpot, try 'Xiao Huo Xi.' On Haichang Street, 'Xing Jiang Ji Bao' (Star-Prize Chicken Hotpot) is recommended. Also near Sea World, 'Zhang Cong Cong Chongqing Hotpot' is good, though the ambiance is just so-so. All of these are in Nanshan district.