Just thaw and prepare. Shichimi Togarashi is available at international markets. Mix the spice mixture to your liking. Shichimi Togarashi is a little on the hot side, so if you like it hot, go with the 2:1 ratio, otherwise, scale back on it a bit.
The frozen pre-cooked edamame at Trader Joe's(R) work perfectly for this recipe and are already salted, so leave the salt out.