Cook brown rice ahead of time and cool at room temperature. Bring a pot of water to boil and cook frozen edamame. Drain and rinse in cold water and set aside to cool.
Whisk peanut dressing ingredients together in a bowl. Add 1 tbsp of water at a time to thin out the dressing to desired consistency.
Combine all prepped ingredients in a large bowl. Add the dressing and toss well to coat. Garnish with green onion, roasted peanuts, fried shallots, and black sesame seeds, then serve.
