In a large mixing bowl, combine the shredded chicken, diced potatoes, cheddar cheese, ranch dressing, crumbled bacon, garlic powder, onion powder, salt, and pepper.
Transfer the mixture to a greased baking dish.
Bake in the preheated oven for 45 minutes, or until the potatoes are tender and the top is golden brown.
Let it cool for a few minutes before serving.
Notes:
This casserole is great for meal prep and can be stored in the fridge for up to 3 days.