The portion of the soto is large especially when they include beehoon in the soto.
I also often eat at the Indonesian restaurant on the 2nd or 3rd floor that sells smashed chicken, I think the place is called Penyet Ayam ? It is a franchised place that is also available in Spore but it's cheaper over there.
Sometimes I go to the restaurant that is across Secret Recipe at the basement. It is I think selling Taiwanese food?
On each visit I don't stay long & so must have several meals within a couple of hours before returning to Spore. That is more than I normally eat each day & I sometimes bring back stuff from the bakeries there.