Slice the chicken into thin strips. Chop the vegetables into bite-sized pieces. Mince garlic and grate ginger.
Mix the sauce
In a small bowl, whisk soy sauce, honey, rice vinegar, cornstarch slurry, garlic, and ginger until smooth. Set aside.
Cook the chicken
Heat oil in a wok or large skillet over medium-high heat. Add the chicken and stir fry until golden and cooked through (about 5–6 minutes). Remove from the pan and set aside.
Cook the vegetables
In the same pan, add onion, bell pepper, broccoli, and snap peas. Stir fry for 3–4 minutes until crisp-tender.
Combine everything
Return chicken to the pan. Pour in the sauce and stir until it thickens and coats the chicken and veggies (1–2 minutes).
Serve
Spoon over jasmine rice or noodles. Garnish with sesame seeds or green onions if you like.