I would really recommend a chain restaurant/izakaya called Torikizoku.
This is a cheap, lively, and friendly place with and english menu and a variety of western-style and Japanese food. I have also taken visitors here before if they weren’t sure what food they would like!
You can get Japanese foods here like takoyaki, Japanese fried chicken, and yakisoba noodles. But you can also get standard things like french fries, grilled meat, vegetables, and fried rice.
Its a decent place to go, not classy but definitely cheap and you know what you’re getting!
Hope this helps!