Akihabara does not only have otaku stores, but also many small places to eat, ranging from McDonald's to a counter-only small restaurants. For those who are on budget and in hurry, "ramen" (pronounced: rah-muhn) will be a great way to fill your appetite. Ramen is a soup containing noodles, vegitables and a piece of meat(usually pork).
One of our staff's favorite stop is Hakata Furyuu
When you are done half-way with noodles, ask for "kae-dama"(a bowl of noodles. pronounced: kaE daMa), when you finish with your noodles, then the chef will give you another bowl of noodles. HOWEVER, kaedama is normally just the noodles, and no soup, so make sure that you don't finish you soup when you ask for kaedama.
If you want to arrange the soup's to your taste, there are some condiments on the counter
From the left, pickled ginger (red), garlic puree (white) and spicy mustard leaf(brown). Also there ground black peppers, and sesame.
Ramen is very cost effective, filling and fast. So whenever you have a chance check out Hakata Furyuu or other ramen shops in Akihabara. For location of Hakata Furyuu, please check out our Map of Akihabara HERE. You will find it in the top-center of the map.
By the way, ramen's soup is usually made with pork and chicken bones. So based on your diet requirements, it might not be suitable for everyone.