well it depends on what food she likes. if she's going for something local and dosen't like well, sleazy places(eg. geylang) there are plenty of great places to introduce her to local food like lau pat sat and chinatown. full of culture,tradition,heritage,history and yet not sleazy

in fact i myself avoid geylang area

location: chinatown, you should know where there's only 1
lau pat sat is located at the tanjong pagar area if u wanna get there just tell the cabbies they'll know straight away.