The Flushing Mall interior is a barrage of colors, mostly pastel. It might not be the most conducive environment for eating, but the simple array of it all quickly erases all concerns. There are 11 options, all of which are good. Bring a translator if possible!
Some of the stalls seem to be open only for the duration of the afternoon, but there should be at least a few options open at any time the mall's doors are still unlocked.