Place skillet on medium high heat, add butter and oil, allow to heat 2-3 minutes.
Coat raw chicken with cajun seasonings. We use Tony Chachere's.
Add chicken pieces to skillet, turning several times to cook evenly.
While the chicken is cooking, chop the bell pepper, onion, and celery.
Remove chicken from skillet, and add veggies. Cook until onion is translucent, 4-5 minutes. You may need to add a tablespoon of butter for the veggies.
Add pressed garlic. Cook 30 seconds more. Pro Tip: Garlic cooks very fast, add in last.
Add chicken back in to skillet. Then add rice, stock or broth, sausage, and tomatoes, if using.
Bring to a boil.
When it reaches boiling point, cover, reduce heat to low, and cook for 25 minutes.
Fluff with fork, taste, and adjust for salt and pepper. Enjoy!