Yi Xin is definitely a good vegetarian choice if the weather is not too hot at Chinatown. Visited it again and looking for something new, tried its Dry "Dao Xiao Mian", literally translated as Knife Sliced Noodles. Well, their texture is like the slightly bigger version of Ban Mian which is much better than other stalls specialising in it which I find the texture usually too thick and rough so I was pleased with their version. With well-marinated Hugh mushroom and good quantity of fresh vegetables and the mock meat, it's quite a nice dish to me. :-)
Located at a coffee-shop at 39 Temple Street, 一心素食 is just near centre of street opp Lucky Chinatown. Opening hours: 8am to 10pm Daily.