In a large bowl, mix together the cauliflower rice, broccoli, chicken, mozzarella, ½ cup cheddar, the garlic powder, onion powder, and salt until well combined.
3. Step
Transfer the mixture to a baking dish and cover with aluminum foil. Bake for 40 minutes.
4. Step
Uncover the pan and top with the remaining ½ cup cheddar cheese. Bake for 10 minutes more, until the cheese is melted.