01 -
In a bowl, season the chicken with 1/2 tsp each salt, pepper, and garlic powder. Toss with 1 tbsp cornstarch until evenly coated. Set aside.
02 -
In another bowl, whisk together all the sauce ingredients until combined. Set aside.
03 -
Heat 1 tbsp vegetable oil and 1 tsp sesame oil in a large skillet over medium-high heat. Stir-fry the zucchini, bell pepper, and onion until tender-crisp, about 3-4 minutes. Remove vegetables and set aside.
04 -
Add the remaining 1 tbsp vegetable oil to the skillet. Cook the chicken in a single layer until browned, about 2-3 minutes per side. Add the garlic and ginger and cook until fragrant, about 30 seconds.
05 -
Pour in the sauce and bring to a boil. Simmer until thickened, stirring occasionally, about 1-2 minutes.
06 -
Return the vegetables to the skillet and toss to coat in the sauce. Cook until heated through, about 1 minute more.
07 -
Serve hot over rice and garnish with sesame seeds and green onions if desired.