Season chicken breast with cajun seasoning, garlic powder, paprika, and black pepper. Be sure to coat each side of the chicken liberally.
Heat a large stock pot over medium high heat and add 2 tablespoons of olive oil into the skillet. Once the olive oil is heated up (after about 1 minute), gently place the chicken in and cook it on each side for 5-7 minutes.
Remove the chicken from the skillet and place it on a cutting board to rest. While the chicken rests, add the other tablespoon of olive oil and the tablespoon of butter into the same pot.
Add the chopped celery, carrots, and onions into the pot and saute over medium heat for about 3 minutes. While the vegetables are simmering, chop your chicken into bite sized pieces.
Now add in the minced garlic and stir it all together and saute for one minute.
Next, add your rice into the pot and stir it around with the vegetables. After 2-3 minutes, add in all of your chicken broth and stir it all together.
Add your seasonings and gently add your chicken pieces into the pot and stir it up. Place a lid on the pot and let it simmer on low for about 10 minutes. Once the rice is tender, add your cup of heavy cream and stir it to combine.
Serve, and enjoy!