In a skillet, heat the olive oil over medium heat. Add the minced garlic and sauté until fragrant, about 1 minute.
Stir in the heavy cream and bring to a gentle simmer.
Lower the heat, and add in both mozzarella and Parmesan cheeses, stirring until melted and combined.
Season the cheese sauce with Italian seasoning, salt, and pepper to taste.
In a large mixing bowl, combine the shredded chicken and steamed cauliflower. Pour the cheese sauce over the chicken and cauliflower, and mix until well combined.
Transfer the mixture to a greased baking dish and spread it evenly.
Top with any remaining mozzarella cheese for an extra cheesy finish.
Bake in the preheated oven for about 25-30 minutes, or until bubbly and golden on top.
Remove from the oven and let it sit for 5 minutes before serving. Garnish with fresh parsley.
Notes
Let the dish sit for a few minutes before serving for better texture.