Cut the broccoli into florets and, along with the dice tofu, placed into a steamer set inside a medium saucepan over boiling water. Steam for about 2 minutes. The broccoli should be bright green and firm still.
In a wok over high heat, combine the oyster sauce, garlic, chili pepper, ginger, miso and rice wine. Bring to a boil. Add the broccoli and tofu and mix well. Garnish with sesame seeds and serve at once.