I ordered the har cheong gai(prawn paste chicken wing) from Ah Tan Wing. It's quite nice and delicious, if only their chilli is a bit more spicy.
Hubby ordered the ngoh hiang (variety of fried food) and the mee hoon(Rice vermicelli)
We paid 50 cents for deposit when we get a tray from the respective stall to carry our food to our table. When we return the tray at the designated return point, an automated system will dispense the deposit to us. No need to pay deposit if we do not need the tray.
More information on how to go to Yishun Hawker Centre