Prep the chicken: Pat chicken dry and cut into bite-size pieces.
Season with a pinch of salt and pepper.
Blanch the broccoli: Boil a pot of water, add broccoli for 1–2 minutes until bright green, then drain and rinse with cold water. Set aside.
Make the sauce: In a bowl, whisk soy sauce, honey, vinegar, sesame oil, cornstarch, and water/broth. Stir in garlic and ginger.
Sear the chicken: Heat oil in a large skillet over medium-high.
Add chicken in a single layer and cook 5–7 minutes, stirring once or twice, until browned and cooked through.
Add the sauce: Reduce heat to medium. Pour in the sauce and stir. Simmer 1–2 minutes until slightly thickened and glossy.
Toss in broccoli: Add broccoli to the skillet and fold gently to coat.
Cook 1–2 minutes more to warm through. Adjust salt, pepper, and sweetness as needed.
Portion: Divide into 4–6 meal prep containers. Add your chosen base (rice, quinoa, etc.) if using.
Top with sesame seeds and green onions.
Cool and store: Let containers cool uncovered for 15–20 minutes before sealing and refrigerating.