Preheat your oven to about 450 degrees Fahrenheit. Lightly grease a 9 x 13 baking dish.

Cut chicken into 1″ chunks.

Cut the potatoes into 1″ cubes with a knife.

Combine the potatoes with half of the ranch dressing, salt, and pepper, in a large mixing bowl.

Spread the potatoes evenly in the prepared baking dish (keep the bowl for the chicken.)

Bake the potatoes for half an hour, turning after every 10 minutes, until nearly done (They will not yet be fork tender).

Meanwhile, season the chicken with salt, pepper, and remaining ranch dressing in the same potato bowl (Additional seasoning options can be found in the notes section below).

Take the baking dish out from the oven after the potatoes have cooked for 30 minutes. Reduce the oven's temperature to 400°F.

Spread the marinated chicken evenly over the cooked potatoes.

Wrap aluminum foil over the baking dish (Caution: Use oven mitts when doing it because the baking dish will still be extremely hot).

Bake again in the oven for another 20 minutes, or until the chicken is thoroughly cooked.

Take it out from the oven. Sprinkle the bacon, shredded cheese, and green onion on top.

Return to the oven for another 7-9 minutes, or until the cheese melts and is bubbly.

Serve immediately and enjoy!