In a small glass bowl whisk all the teriyaki sauce ingredients.
Heat 1 Tbsp oil in a large skillet, over medium high heat.
Add the chicken and cook stirring until cooked through and golden brown, about 6-7 minutes. Set aside.
In the same pan add in the remaining oil and veggies.
Cook stirring occasionally until crisp tender, about 8 minutes.
Add the garlic and cook further for another minute.
Return the chicken to the pan and add in the teriyaki sauce.
Cook for and additional 1-2 minutes until everything is heated through and the sauce thickens a bit.
Sprinkle with sesame seeds and enjoy!