Place the chicken breasts in between two pieces of parchment paper or plastic cling wrap.
With a meat mallet, pound the chicken to an even 1-inch thickness. Set aside.
Combine the salt, Italian seasoning, garlic powder, onion powder, and ground black pepper in a small bowl.
Sprinkle both sides of the chicken breast with the seasonings.
Preheat a cast iron skillet over medium heat. Once heated, add the olive oil to the skillet and let heat for 1-2 minutes until hot.
Add the chicken breasts to the cast iron skillet.
Cook for 7-8 minutes over medium heat until the bottom side is golden. Then, flip and cook for another 7-8 minutes, or until the chicken reaches an internal temperature of 165F.
Let the chicken rest for 5 minutes before slicing into thin slices.