You'll find exceptionally good regional cuisine from Shimane Prefecture at very reasonable prices at this old-fashioned izakaya. The menu showcases fish and seafood flown in from the region as well as local-style dishes prepared from heirloom breeds of pork and chicken. There's also a good selection of Shimane craft sake, with a friendly staff who are happy to advise you on your selection.
The menu lists only a handful of sake brands, but if you ask the staff for recommendations there are a few dozen more - mostly from small craft breweries and typically priced at around Y800 per glass. More adventurous drinkers may wish to try the Shimane-ken wine - red and white are each Y630 per glass. The restaurant is affiliated with the Shimane-ken Prefectural antenna shop next door, which helps explain the abundance of freshly imported ingredients and the very reasonable prices.
Budget around Y3500-4500 per person for ample food and drink; party plans are also available. Mondo also has a newer and much larger branch, about three minutes south of here in Nihonbashi.