A creamy, cheesy baked casserole combining tender chicken, pasta, and Alfredo sauce with a crunchy Parmesan-panko topping. Perfect for weeknights and make-ahead meals.
Preheat oven to 375°F (190°C). Cook pasta in salted boiling water until just shy of al dente, drain and set aside.
Sauté garlic in olive oil briefly, then add Alfredo sauce, milk, and cream cheese (if using). Stir until smooth. Add Italian seasoning, half the Parmesan, salt and pepper.
In a large bowl, mix pasta, chicken, sauce, peas/broccoli, and half the mozzarella. Transfer to a greased 9x13-inch baking dish.
Sprinkle remaining mozzarella and Parmesan over the top. Mix panko with melted butter and sprinkle on top. Bake uncovered for 25–30 minutes until bubbly and golden.
Allow casserole to rest 5–10 minutes before serving so it sets and is easier to portion.
Notes
Use rotisserie chicken to save time.
Assemble ahead and refrigerate for up to 24 hours before baking.
To freeze, bake, cool, wrap tightly, and freeze up to 3 months.