Organically Cultivated Beech (Honshimeji) Mushrooms. The Honshimeji mushroom grows in bunches of delicate, compact white stems 1 to 2 inches high, topped with small light brown or off white caps. The flesh of this mushroom is crisp in texture, providing a crunchy and juicy meat that may taste somewhat nutty or herb flavored when cooked. It is not a good mushroom to serve raw, since the flavor and ability to digest it will not be favorable. It is a good mushroom to serve in stir-fried foods, with wild game or seafood, in soups or stews, and in a variety of sauces.