It's no different from la mian (= ramen) or other similar kinds of Chinese-type alkaline noodles being topped with a sauce or saucy mixture of meats and vegetables etc. A standard and universal feature of many kinds of regional Chinese, Chinese-derived and similar-idea cuisines.
(Remember too that "ramen" doesn't have to be this curly-type stuff, which is more common of the dried "instant" blocks; and that "ramen" is indeed very similar to certain kinds of E/SE Asian alkaline noodles)