I’m typing this up on Thanksgiving, appropriately enough.
無芸大食
mu.gei.tai.shoku
Literally: no – art – big – eat
Alternately: A person whose only outstanding skill is eating. Someone is lacking in any special skills, but they sure can eat.
Notes: Can be used to mock others or for humble self-deprecation.

A huge number of the image-search results were for ramen, so here you go. Real Japanese Ramen! (Image from an online review of a shop in Tokyo.)