Preheat your oven to 400°F.
In a 9x13-inch baking dish, combine the rice, chicken broth, soy sauce, rice vinegar, sesame oil, minced garlic, vegetables, salt, and pepper. Stir everything together to ensure the ingredients are evenly distributed.
Cover the baking dish tightly with foil and place it in the preheated oven. Bake for 40 minutes.
Carefully remove the dish from the oven and take off the foil. Return the dish to the oven for an additional 5 minutes to allow the top of the rice to brown slightly.
Take the rice out of the oven, loosely cover with foil, and let it sit for 10 minutes to absorb any remaining liquid.
Uncover and fluff the rice with a fork. Garnish with chopped green onions if desired, and serve alongside your favorite protein.