Preheat oven to 450 degrees F. Spray 9x12 baking dish with olive oil.
Add carrots and broccoli to baking dish. Drizzle with olive oil and sprinkle with kosher salt and ground black pepper. Massage oil into the veggies.
Place chicken breasts on top of the veggies. Season with kosher salt and ground black pepper. Brush teriyaki sauce over top the chicken.
Cover pan with foil. Place in oven, middle rack.
Let bake approx. 25-30 minutes or until chicken is fully cooked (chicken is fully cooked when it reaches an internal temperature of 165 degrees F.).
Remove from oven and let cook slightly. Brush or drizzle with additional teriyaki sauce, as desired, and serve as-is, over regular rice of your choice or over cauliflower rice.
Notes
Storage: store leftovers in an airtight container in the refrigerator for up to 3 days.
Whole30/Paleo: to make this Whole30/Paleo use a compatible teriyaki sauce and serve either as-is or over cauliflower rice.
Gluten-Free: use a gluten-free teriyaki sauce to make this recipe gluten-free.
Veggies: feel free to omit the veggies if you want.