Chilled Tofu with Avocado and Wasabi-Soy Sauce

Sounds like a weird combo, but tofu and avocado actually go really well together. Not sure where this dish originated from, but I adapted my version from a recipe in Weichuan's Chinese Rice and Noodles with Appetizers, Soups and Sweets. The original used only soy paste for the sauce, but I added a bit of sesame oil and wasabi to spice it up. Bonito shavings are optional, but I think they really enhance the dish.