Preheat your oven to 375°F.
In a large bowl, season the chicken breasts with salt, pepper, garlic powder, and onion powder.
In another bowl, mix together the softened cream cheese, sour cream, cheddar cheese, mozzarella cheese, crumbled bacon, and chopped green onions until well combined.
Spread the cream cheese mixture evenly over the seasoned chicken breasts in a baking dish.
Sprinkle the grated Parmesan cheese on top of the chicken and cheese mixture.
Cover the baking dish with aluminum foil and bake in the preheated oven for 30 minutes.
Remove the foil and bake for an additional 15-20 minutes, or until the chicken is cooked through and the cheese is bubbly and golden.
Let it rest for 5 minutes before serving.