Gather and prep all ingredients. Wash, trim, and dry spinach. If your chicken breasts are more than 3/4 inch thick, slice lengthwise to reduce thickness. Season chicken breast with Italian seasoning, onion powder, garlic powder, and salt and pepper to taste.

In a pan over medium-high heat, add olive oil. Once hot, add chicken breast into the pan and cook until browned, about 3 minutes on each side. Once cooked, remove from pan and set aside in foil.

Start on the creamed spinach. Add olive oil and onion to the pan. Sauté onion until translucent, about 2 minutes. Add spinach to the pan and season with salt and pepper to taste.

Once the spinach is tender, add in the cream cheese, heavy cream, and garlic powder. Stir vigorously until ingredients are smoothly incorporated and sauce is thickened.

Plate chicken with creamed spinach. Enjoy!