There are 2 vegetarian stalls in the Shunfu Food centre, above its Shunfu market at level 2 or just behind Thomson Community Club. One sells the standard mee hoon set (which quick glance seems to have alot of those gluten products) while the other which I patroned at #02-02, near to entrance of main road, serves more variety of dishes.
However, for a quick breakfast, I just ordered their fried mee hoon & popiah. Taste wise, reasonable at a price of $2.20 lah. :-)