So, I visited Yoyogi Hachiman this afternoon and checked the food stalls for you all ! It is third stop from Shinjuku station on Odakyu line ( Local , do not take Express to get off this station ).
This is Oden.... supposed to be Winter food, but it was tempting..
I had Japanese radish and Rice cake wrapped in deep fried bean curd. The soup is also tasty. Mustard is a must item !