Make the sauce: In a small bowl, whisk soy sauce, rice vinegar, honey, ginger, garlic, sriracha, cornstarch, and water.
If using fish sauce, add it now. Set aside.
Prep the veggies: Shred the cabbage, slice the carrots and bell pepper, and separate green onion whites from greens. Keep everything ready by the stove.
Cook the chicken: Heat neutral oil in a large skillet over medium-high.
Add sliced chicken and the white parts of the green onions. Season lightly with salt and pepper. Cook 5–7 minutes, stirring, until the chicken is no longer pink and edges are browned.
Add the sauce: Reduce heat to medium.
Give the sauce a quick stir and pour it over the chicken. Simmer 1–2 minutes until glossy and slightly thickened. Transfer chicken and sauce to a bowl and cover to keep warm.
Sauté the veggies: In the same skillet, add sesame oil.
Toss in green and red cabbage, carrots, and bell pepper. Stir-fry 3–4 minutes, just until the cabbage softens but stays crisp. Season with a pinch of salt.
Combine: Return the chicken and any sauce to the skillet.
Toss with the veggies until everything is coated. Turn off the heat. Stir in the green parts of the green onions and sprinkle with sesame seeds.
Assemble bowls: Divide cooked rice or quinoa among 4–5 meal prep containers.
Top with the chicken-cabbage mixture. Add lime wedges and herbs if you like.
Cool, then store: Let containers cool uncovered for 15–20 minutes, then seal and refrigerate.