Mikasa
This could be the best Yakisoba place throughout the country. They have two kinds of flavors - #1) sweet&sour sauce, and #2) salt and lemon - I personally like #2 much better and it's my favorite Yakisoba in life! One reservation would be that both of them could be too salty for some people, especially the one with sweet&sour sauce. It's always super crowded and you can't make a reservation, so you just need to get there as early as you can and wait in the line.
My rating: 4.5
Mikasa
Tabelog | 03-3239-5110 | 2-24 Kanda Jimbocho, Chiyoda-ku, Tokyo
Access: 3 minutes from Jinbocho station
Budget: 500 JPY or more
Open: 11:00-17:00 (*close when run of noodles)
Closed: Sunday/Holiday