Baked Chicken Broccoli Alfredo

broccoli florets, boiled or steamed til tender

small pasta (I used spiral but you could also use macaroni, penne, or shells) boiled til tender and drained

shredded or diced cooked chicken (see note)

butter

flour

garlic powder

salt, or to taste

pepper

milk, half & half, or heavy cream ((I prefer half & half but heavy cream will have the richest flavor))

cream cheese, softened

shaved parmesan cheese, (divided)

butter

panko breadcrumbs

Italian seasoning