01 -
Preheat oven to 375°F and lightly grease a 9×13-inch baking dish.
02 -
Steam or blanch broccoli florets until just tender, then drain thoroughly.
03 -
In a large bowl, gently mix cooked chicken, broccoli, turkey bacon, minced garlic, mozzarella, cheddar, and ranch dressing until well combined.
04 -
Spread the mixture evenly into the prepared baking dish.
05 -
Sprinkle the surface with the reserved shredded cheddar and mozzarella.
06 -
Bake for 25 to 30 minutes, or until hot and bubbly with cheese melted and lightly golden.
07 -
Allow casserole to rest for 5 to 10 minutes before serving for optimal texture and flavor.