I rushed out of school after my last lecture to meet dear and one of his colleagues for dinner. We went to Bishan Jin Shan Leng Coffee Shop for the chicken rice!
You definitely have to try their chicken rice! It's long queue everyday, especially on weekends. It's yummy and most importantly, the portion is big, so it'll be great for big eaters.
Don't be mistaken, we ordered half chicken. (shown in following picture)

Yes, chicken rice (not roasted) is more fattering than roasted chicken! One in a while should be fine. :)

It's at Bishan St 13, Blk 511, Jin Shan Leng Coffee Shop, near to Bishan Bus Interchange. I will advise you to visit in the afternoon.