In a large skillet, heat 1 tbsp olive oil on medium heat.
Add chicken to the pan and brown until cooked through, about 7-9 minutes depending on size.
In another large sauté pan, heat 1 tbsp of olive oil on medium heat and add veggies. Sauté for about 5-6 minutes until softened.
While the chicken and veggies are cooking, make your teriyaki sauce. First, whisk together cornstarch and water in a small bowl or cup. In a medium bowl combine soy sauce, brown sugar, honey, ginger, garlic, and then water mixed with cornstarch.
When the chicken is cooked through and golden brown, add the teriyaki sauce to the cooked chicken pan and simmer until the teriyaki sauce reduces and becomes thicker, stirring regularly.
Stir in veggies, making sure to coat evenly with the sauce (there will be extra!). Serve with rice and top with green onion, sesame seeds, or even sriracha or chili flakes.