Jason G.
Yelp
Singapore Food Street is basically everything I love about Singapore, namely the food scene, just at the airport.
I've spent more time than I care to think about in the Singapore airport, and in general, this is my favorite place to get something to eat. There are a lot of different types of food here, so if you're with a group or family, you don't all have to get the same thing. They have breakfast options, as well as late-night food, especially since some of the stalls here are 24 hours. And naturally, there is a Burger King if you need that dose of Western food.
There's a large area to sit behind Singapore Food Street, as well as more lounge chairs and a "snooze zone."
Of course it all depends on where your flight is, because if you have a flight in Terminal 2, there's no real point in coming over here. But this is a good option in Terminal 3!