There is another hidden foodcourt at 2nd level of Millenia Walk, hidden in the jungle of Harvey Norman (from center escalator, turn right & left). It is much smaller & less known in comparsion to Suntec City's to the shoppers but I guess people working around the Suntec area would know about it. And in it, another Eight Immortals' vegetarian stall. :-)
Found that they had quite reasonably priced economical rice which the price list mentioned 3 vege at $2.80 if I recalled correctly. However, I am always attracted by soup dishes, so I ordered their herbal mutton soup. The soup was nice with miso taste and came with it quite a good portion of ingredients.
This stall might be the one moved from Marina Square. I wonder if there's any new vegetarian stall replacing it at Marina Square.
The stall is located at Millenia Walk Koufu Food Court (Level2, No 9 Raffles Boulevard, S(039596), hidden at middle left of Harvey Norman.