Omusubi With Soy-Butter Mushrooms

You can find a version of the adorable Japanese stuffed rice balls known as omusubi (or onigiri) at the California chain Sunny Blue. These are filled with a salty-buttery mix of chopped mushrooms, such as earthy shiitake, shimeji, and enoki. All are easy to find in Asian supermarkets, but you can also use crimini or button mushrooms with great results. Just make sure to cut the mushrooms into fairly small pieces so they can eventually fit inside the rice balls.