As far as I know there is no late night menu. Su-T it is only open until 11p and F-Sa 1 am. They don't need to switch menus as everything is already delicious. XD Things can 86'd as ingredients dwindle throughout the night.
From what I understand the noodle bar serves from the dinner menu thru the night but a lot of options get eliminated the later you go because they run out of stuff through the dinner rush.
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