noun
soba with egg
A bowl of soba noodles topped with a raw or soft-boiled egg, named after the moon-viewing festival because the egg resembles a full moon.
寒い夜は月見蕎麦が食べたくなる。
On a cold night, I crave soba with egg.
From 月見 (moon viewing) + 蕎麦 (soba). The egg resembles a full moon, evoking the autumn moon-viewing tradition.