Heat olive oil in a skillet over medium heat. Cook the chicken breasts until golden brown and cooked through. Remove from the skillet and set aside.

In the same skillet, add heavy cream, Parmesan cheese, garlic powder, salt, and pepper. Stir until the sauce thickens.

Slice the chicken breasts and return them to the skillet. Toss to coat with the Alfredo sauce.

Garnish with fresh parsley and serve.