i've only had the instant kind, tho i'd prolly try the yakisoba without lettuce/cabbage. i like the udon noodles but idk if buckwheat would be as good but i suppose as long as it's not too strong like natto flavoring or so, noodles are usually a popular hit
although even if it's a popular dish i'd hope you could get it reasonably cheap even if it might be cheaper to make it urself lol