01 - Preheat your oven to 375°F. Lightly grease a 9x13-inch baking dish with cooking spray or oil.
02 - In a large bowl, combine the uncooked rice, diced onion, red bell pepper, frozen corn, black beans, diced tomatoes with chilies including juices, chicken broth, cumin, smoked paprika, chili powder, garlic powder, salt, and black pepper. Mix thoroughly to evenly distribute spices.
03 - Pour the rice and vegetable mixture evenly into the prepared baking dish, spreading it into a uniform layer.
04 - Nestle the chicken pieces into the rice mixture, pressing them down slightly and spreading them out evenly throughout the dish.
05 - Cover the dish tightly with aluminum foil. Bake for 35 minutes to allow rice to absorb liquid and chicken to cook through.
06 - Remove the foil and sprinkle the shredded Mexican cheese blend evenly over the top. Bake uncovered for an additional 10-15 minutes until the cheese is melted and bubbly and the rice is tender.
07 - Let the dish rest for 5 minutes before serving to allow flavors to meld. Garnish with fresh cilantro, sliced jalapeños, sour cream, and lime wedges if desired.