Heat the sesame oil in a large skillet over medium heat. Add the cubed chicken and cook, stirring occasionally, for 6-8 minutes, until cooked through and no longer pink.

Meanwhile, cook the broccoli according to the package instructions and drain well. Add the cooked broccoli to the skillet with the chicken.

Stir in the teriyaki sauce and cook for 2-3 minutes, until the sauce thickens slightly and evenly coats the chicken and broccoli.