Preheat oven to 375 degrees F (190 degrees C). Line a sheet tray with a silicone mat or aluminum foil.
Lay out the Boneless Skinless Chicken (1 pound), Broccoli (1 head), Scallion (4), Red Bell Pepper (1), and Cashew Nuts (2/3 cup) on the tray in a single layer.
Whisk the Low-Sodium Soy Sauce (1/3 cup), Rice Vinegar (2 tablespoon), Sesame Oil (2 tablespoon), Garlic (1 tablespoon), and Fresh Ginger (1 teaspoon) together in a bowl.
Pour it over the chicken and veggies. Use a spoon to quickly toss it all together thoroughly.
Roast everything for 25-30 minutes.
Serve immediately over White Rice (to taste) with a sprinkle of Toasted White Sesame Seeds (to taste) on top. Enjoy!