Eat Canteen is a Chinese fast food stall that can be found in the food court under the TD Centre in the PATH. There are noodle soups (chicken, beef, shrimp or veg) and great combo options that come with rice or noodles and your choice of meat and salad/veg dishes that all ring in for $10 or less (bonus: the portions are generous). The ginger beef is popular, but there's a lot to choose from and if you ask nicely, they might let you sample before you buy.