01 - Toss chicken breast pieces with soy sauce and cornstarch in a medium bowl until evenly coated.
02 - Heat vegetable oil in a large skillet over medium heat. Add prepared chicken and cook, stirring occasionally, until golden brown and cooked through, about 5 to 6 minutes. Transfer chicken to a plate and set aside.
03 - In the same skillet, combine soy sauce, honey or brown sugar, rice vinegar, minced garlic, grated ginger, and water. Simmer over medium-low heat for 2 minutes.
04 - In a small bowl, whisk cornstarch with water to create a slurry. Stir slurry into simmering sauce and cook, stirring constantly, until thickened.
05 - Return cooked chicken to skillet with sauce. Stir to evenly coat every piece in teriyaki glaze.
06 - Divide cooked rice among four bowls or meal prep containers. Top each with teriyaki chicken, steamed broccoli, julienned carrots, and shelled edamame. Allow to cool slightly before covering.