Cook brown rice according to package instructions until tender.
Season chicken cubes with salt and pepper and sear in a pan over medium-high heat for 8-10 minutes until internal temperature reaches 165°F (74°C).
Steam broccoli florets until tender-crisp, approximately 5-7 minutes.
Whisk together peanut butter, soy sauce, rice vinegar, honey, ginger, garlic, chili flakes, and water in a small bowl until a smooth emulsion forms.
Divide cooked rice, chicken, and broccoli equally into four meal prep containers or bowls.
Drizzle the prepared peanut sauce over the components.
Garnish with crushed peanuts and sliced green onions.