Preheat your oven to 375°F (190°C).
Season the chicken breasts with salt, pepper, garlic powder, and onion powder.
Heat olive oil in a large skillet over medium heat.
Add the chicken breasts and sear for 5-7 minutes on each side until golden brown.
Remove the chicken from the skillet and set aside.
In the same skillet, add ranch dressing and heavy cream, stirring to combine.
Bring the sauce to a simmer, allowing it to thicken for about 5 minutes.
Return the chicken to the skillet, ensuring it’s well coated with the sauce.
Sprinkle shredded cheese on top if desired.
Transfer the skillet to the preheated oven and bake for 20 minutes or until the chicken is cooked through.