In a small bowl, combine salt, pepper, garlic powder, onion powder, paprika, dried parsley, dried oregano and red pepper flakes. Stir well and transfer to a container with tight fitting lid for storage. Set aside.
Preheat cast iron skillet on medium-high heat and add olive oil. Pan fry chicken breasts for 2 minutes per side, just until golden brown. Remove from heat.
In a small bowl, add 4 tablespoons of butter and melt in a microwave or on a stovetop. Add minced garlic, 2 teaspoons of seasoning and minced garlic. Stir well and pour over the chicken breasts in a skillet.
Cook uncovered in a preheated oven to 400°F for 25 minutes. Ovens vary, so if yours runs hotter bake on a middle rack, otherwise bottom rack is the best.
Remove garlic butter chicken breasts from the oven and cover with any lid, aluminum foil or even a cutting board like I did. Let chicken rest for 5 minutes before cutting and serving it.