Cook the rice ahead: If you haven’t already, cook your brown rice and let it cool. Chilled rice fries better and won’t clump.
Mix the sauce: In a small bowl, whisk soy sauce, honey, rice vinegar, cornstarch, and water.
Add a pinch of red pepper flakes if you like heat. Set aside.
Prep everything: Slice the chicken thinly. Cut the vegetables into bite-sized pieces.
Keep aromatics (garlic, ginger, green onion whites) separate from greens and garnishes.
Heat the pan: Place a large skillet or wok over medium-high heat. Add 1 tablespoon oil until shimmering.
Cook the chicken: Season lightly with salt and pepper. Stir-fry in a single layer for 3–4 minutes until just cooked through and lightly browned.
Remove to a plate.
Sear the veggies: Add another tablespoon of oil. Stir-fry broccoli, carrots, and peppers for 3–4 minutes until crisp-tender. Add peas and cook 1 minute more.
Add aromatics: Push veggies to the sides.
Add a splash of oil if needed, then stir in garlic, ginger, and green onion whites for 30 seconds until fragrant.
Optional egg step: Push everything to the edges. Pour in beaten eggs and scramble just until set. Toss to combine.
Add rice and chicken: Add the cooked rice and chicken back to the pan.
Break up clumps and stir-fry for 1–2 minutes to heat through.
Sauce and finish: Give the sauce a quick stir (cornstarch settles). Pour it over and toss until glossy and coated, about 1–2 minutes. Turn off heat and finish with sesame oil and green onion tops.
Serve: Sprinkle with sesame seeds if you like.
Taste and adjust with extra soy, vinegar, or chili for balance.