One of the best places to eat for vegetarians in Singapore is Waterloo St.: this area is full of temples, Buddhist shops and vegetarian restaurants and grocery stores. All of the food I tried here is also suitable for vegans, since there are no dairy products and eggs in traditional Vegetarian Chinese cuisine.
The dishes are quite interesting, lots of tofu and gluten dishes (first left below is lemon 'chicken' - chicken made with gluten), and there is a Japanese vegetarian restaurant called Herbivore where they make vegan sushi that looks like fish! In the food courts the kids kept going for Indian, their favourite, but I tried Pandan cuisine, (Indonesian and quite spicy), they didn't have lots of vegetarian options but enough to fill a plate with rice, tofu and vegetables).
I also suggest that you try kaya, the coconut curd/jam, but remember that this has egg in it (and it is very sweet!)
Kaya is the typical Singapore breakfast, served with buttered toast, boiled eggs on the side, and coffee. It is green because it contain pandan fruit.
Last photo: my friend Marcella, a talented designer and silversmith, made me this beautiful necklace with black river pearls and a silver pendant with an Amethyst. Isn't it beautiful!!!