Make the dressing: Mix the rice vinegar, tahini, tamari, miso, maple syrup, ginger, and garlic powder in a medium bowl until the miso is fully incorporated, with no chunks remaining.
Combine the ingredients: Transfer the carrots, red cabbage, edamame, quinoa, green onion, and peanuts to a large bowl. Add the desired amount of dressing and mix to combine. Add salt to taste. Serve chilled or at room temperature.
