Combine all sauce ingredients and bring to a boil over medium heat, whisking constantly until thickened.
Place chicken and veggies on sheet pan.
Pour 2/3 of the sauce over chicken and make sure everything is mixed well. Reserve the other 1/3 sauce.
Bake for 12 minutes, then remove from oven. Stir food well making sure the chicken is moved apart so it can cook thoroughly. Add cashews. Return to oven to bake for 8-12 more minutes,or until chicken has reached 165 temperature.
Serve over rice, cauliflower rice, or zoodles. Top with reserved sauce. Enjoy!
Notes
You don't have to cook the sauce prior - but it is better if you do. If you decide not to thicken the sauce, just omit the arrow root powder. Mix well and pour over chicken and vegetables before baking.