make the easiest Low Carb Chicken Alfredo Bake with tender chicken, rich Alfredo sauce, melty cheese, and a satisfying baked finish that makes every bite feel indulgent.
Preheat your oven and lightly grease a baking dish. If using fresh cauliflower or broccoli, steam it briefly until just tender so it bakes up perfectly in the casserole.
In a saucepan, melt the butter and cook the garlic until fragrant. Stir in the heavy cream and cream cheese, whisking until smooth. Add the Parmesan, Italian seasoning, salt, and black pepper, and continue stirring until the sauce is creamy and well combined.
In a 9x13 baking dish, mix together the cooked chicken, cauliflower, broccoli, and Alfredo sauce until everything is evenly coated. Sprinkle mozzarella and a little extra Parmesan over the top for that golden cheesy finish.
Bake at 350F for 10-15 minutes, or until the casserole is hot, bubbly, and lightly golden on top. Top with chopped parsley if desired and serve warm.