Preheat the oven to 350 degrees F (175 degrees C). Spray a deep dish pie pan with nonstick cooking spray and set aside.
Combine eggs, cream, milk, garlic powder, pepper, and salt in a large bowl. Whisk together until well blended. Dice baked potatoes. Stir potatoes and Cheddar cheese into egg mixture. Pour the mixture into the prepared pie pan.
Bake in the preheated oven for 45 minutes. Remove and sprinkled the cooked, chopped bacon over the top. Return to the oven to continue to bake until the middle is cooked through and no longer very jiggly (a little bit of wiggle is ok - but eggs should be cooked through), 15 to 30 minutes. Allow to cool and set for at least 15 minutes before slicing and serving.