Shikaku-mame 四角豆、literally square beans, are also called winged beans. Shikaku-mame is a crisp green bean with slightly bitter notes that can be blanched, sautéed, or fried as tempura. I came across a package at Tsukiji Market for 100 JPY ($1 USD). I asked the shopkeeper her suggestions for cooking and she suggested ohitashi-style and sautéed. Rinse…