The Kanda area has a lot of good restaurants, and Yamatoya Otojiro, a seafood izakaya, is definitely one of them. Eat lots of fresh sashimi and drink of a couple of cups of sake and it shouldn't cost you more than ¥4,000.
Just a 7 minute walk from Ginza Station, Haneda Ichiba Ginza Chokubaiten is a standing-only restaurant that was started by fish merchant serving high-class restaurants in the area. Here you can eat extremely fresh fish that was caught this morning--from around Japan!
Have you heard of 'Taiko Chaya?' It's an izakaya in Tokyo's Asakusa Bashi that is so popular that there's a ticket system for getting in to enjoy the all-you-can-eat sashimi lunch! It's a unique lunch experience that is worth trying, especially if you are a sashimi lover!
They call it the Tuna Demolition Show! And they have good reason to. Maguro Shoten is a tuna specialty restaurant in downtown Shinjuku, in the very heart of red light district Kabukicho. They offer a daily Tuna dismantling and carving show that will leave you drooling for some fresh tuna. Don't be deterred by the red light district location though, it's the perfect place for some great food and some truly good-fun entertainment! If you love tuna or sashimi, this is the place to be! You definitely won't be disappointed!