Whisk together tamari, lemon juice, salt, and garlic powder in a bowl. Add the chicken thighs and toss to coat. Cover and marinate in the fridge for at least 20 minutes.
Preheat the oven to 400°F. In a separate bowl, mix cooked rice with tamari, sriracha, and oil. Spread the rice evenly on a parchment-lined baking sheet and bake for 20 to 25 minutes, stirring halfway through, until crispy and golden brown.
Preheat the oven to broil. Place the marinated chicken thighs on a foil-lined baking sheet and broil for about 15 minutes until cooked through and slightly charred or until the chicken reaches an internal temp of 165℉. Let rest, then slice into strips or bite-sized pieces.
In a bowl, combine edamame, sliced bell pepper, shredded red cabbage, and chopped green onions to make the salad.
Add all peanut sauce ingredients to a blender or food processor and blend until smooth. If it's too thick, add a splash of warm water to loosen.
To assemble, layer crispy rice in a bowl, top with sliced chicken and salad, drizzle with peanut sauce, and finish with chopped peanuts and green onions.