Preheat oven to 375°F (190°C). Grease a baking dish.
In a large bowl, mix chicken, spinach, mozzarella, cream cheese, sour cream, Parmesan, garlic powder, onion powder, salt, pepper, Italian seasoning, and milk until well combined.
Spread the mixture evenly into the prepared baking dish.
Top with shredded cheddar cheese, ensuring full coverage for a gooey, cheesy finish.
Bake for 25-30 minutes, until the cheese is fully melted and bubbly.
Let it cool for a few minutes before serving. Enjoy!
Notes
Add an extra ½ cup of mozzarella to the topping for a stretchier, meltier layer.
Swap sour cream with Greek yogurt for a slightly tangy, creamy twist.
Perfect with garlic bread, pasta, or roasted veggies for a complete meal.