Start by seasoning the chicken breasts with salt and black pepper on both sides.
In a large skillet, heat the olive oil over medium heat. Add the chicken breasts and cook for about 6-7 minutes on each side, or until they are golden brown and cooked through. Remove the chicken from the skillet and set aside.
In the same skillet, add the chicken broth, heavy cream, garlic powder, and onion powder. Stir to combine and bring to a simmer.
Reduce the heat to low and stir in the grated Parmesan cheese until melted and smooth. Return the chicken to the skillet, coating it in the creamy sauce. Let it simmer for about 5 minutes.
While the chicken simmers, cook the egg noodles according to package instructions. Drain and return to the pot.
Add the butter to the noodles and toss until melted and well combined. Season with a little salt if desired.
Serve the creamy chicken over the buttered noodles and garnish with chopped parsley.