Preheat your oven to 350°F (175°C).
In a large mixing bowl, combine the shredded chicken, cooked fried rice, broccoli, bell peppers, carrots, and teriyaki sauce. Mix until well combined.
Transfer the mixture to a greased casserole dish and spread evenly.
If using, sprinkle the shredded cheese on top.
Cover with aluminum foil and bake for 25-30 minutes.
Remove foil and bake for an additional 10 minutes or until heated through and cheese is bubbly.
Serve hot and enjoy!