Cut the tops off the bell peppers and remove the seeds. Place the peppers upright in a baking dish.
In a large mixing bowl, combine the shredded chicken, buffalo sauce, cream cheese, mozzarella cheese, ranch dressing, garlic powder, onion powder, salt, and pepper. Mix well until everything is evenly incorporated.
Stuff each bell pepper with the buffalo chicken mixture, pressing down slightly to pack it in.
Cover the baking dish with aluminum foil and bake in the preheated oven for 25 minutes.
Remove the foil and bake for an additional 10-15 minutes, or until the peppers are tender and the tops are slightly golden.
Remove from the oven and let cool for a few minutes before serving.
Garnish with chopped green onions for a fresh finish.
Notes
Adjust the buffalo sauce based on your heat preference.