On the recommendation of another CH'er E Eto, I went to Ootoya. They have over 100 restaurants in Tokyo ( 200 in Japan), Osaka, Kyoto, Hokkaido, others in Singapore, Taiwan, Bangkok, and many more. It is described as Teishoku dining , or homestyle Japanese dining. They are now offering both the luncheon "set menu", and a dinner menu. There is nothing fancy here, it certainly reminded me of many restaurants I've been to in Japan. Just good food of all kinds. Char grilled fish ( salmon, mackerel and aji), Pork curry, veggie curry with noodles. The noodles are handmade, home made tofu dishes, they have pressed salmon and pressed mackerel sushi, shiokara, many chicken dishes, yakitori grilled in front of you. They have a few different desserts and all the green tea you want.
They presently do not have a liquor license but one is coming soon. The luncheon menu is not expensive and can be ordered for dinner. We had 2 sets ( katsy curry and veggie udon curry) it came with a kind of egg custard ( like chawanmushi but nothing in it), miso soup, pickles, rice,) we also ordered the fresh tofu , and an order of ika shiokara. The total bill was only $57. The dinner menu is more expensive, but "sets" are really the way to go here. Here is a link I found describing the food.
it is located on W. 18th St. just off 5th Ave.