Prepare the chicken: In a medium bowl, toss the sliced chicken with cornstarch until it’s evenly coated.
Heat the oil: In a large skillet or wok, heat the vegetable oil over medium-high heat until shimmering.
Cook the chicken: Add the chicken to the skillet and cook for about 5-7 minutes until golden brown. Remove and set aside.
Sauté the vegetables: In the same skillet, add garlic and ginger, cooking for 30 seconds until fragrant. Add broccoli, bell pepper, and snap peas, cooking for 3-5 minutes.
Combine and add sauce: Return the chicken to the skillet, pour in soy sauce, oyster sauce, and sesame oil. Toss together and cook for another 2-3 minutes.
Serve immediately with rice or noodles.
Notes
Slice ingredients evenly for uniform cooking. Adjust sauce to taste for desired flavor.