In a medium bowl, combine the diced chicken, olive oil, Cajun seasoning, smoked paprika, onion powder, salt, and pepper. Mix well and let marinate for at least 30 minutes in the refrigerator.
Heat a large skillet over medium heat. Add the marinated chicken and cook for about 5-7 minutes until the chicken is golden brown and cooked through. Remove from the skillet and set aside.
In the same skillet, add the diced onion, red bell pepper, green bell pepper, and garlic. Sauté until the vegetables are tender, about 5 minutes.
Add the rice to the skillet, stirring to coat it with the vegetable mixture. Pour in the chicken broth and bring to a boil. Once boiling, reduce heat to low, cover, and simmer for about 15-20 minutes, or until the rice is cooked and the liquid is absorbed.
Once the rice is cooked, fluff it with a fork and stir in the cooked chicken, frozen corn, and black beans. Cook on low heat for an additional 5 minutes, allowing everything to meld together.
Divide the Cajun chicken and rice mixture into meal prep containers. Garnish with fresh parsley.