To start preheat oven to 400 degrees, then pat dry your chicken breast cutlets with paper towels.
Place cast iron skillet over med-high to high heat add oil and spread to cover bottom of pan.
Cover each chicken breast piece with the seasoning, either coat or just cover top with the spices and flip seasoned side down in skillet, then season the other side in pan.
Sear for a 3-5 minutes until chicken easily releases from pan and is dark in color.
Flip and sear another minute or two before moving the skillet to the oven. As you can see, the outer surface is seared, but middle is still pink.
Bake for 8-15 minutes. The wide variation on time is due to varying sizes of chicken breasts. A small 4 oz breast will be done in about 10 minutes, whereas the larger breasts like I've shown here will take 13-15 minutes to cook thoroughly.
Let the chicken rest a few minutes before serving. While you can serve as is, I prefer to slice the breasts prior to serving.
Nutrition calculated based on using my Cajun seasoning recipe, with estimate of 1 tablespoon adhering to the chicken breasts overall. As always this is simply provided as an estimate. If using store bought seasoning or another recipe, calculate based on that. How much sticks will also vary.