2 cups uncooked elbow macaroni (about 9 oz)
4 tablespoons butter
1/3 cup all-purpose flour
1 teaspoon onion salt
1 teaspoon garlic salt
1 teaspoon pepper
3 cups milk
4 cups shredded cheddar cheese
2 cups chopped cooked chicken
1 bag frozen broccoli florets
1 ½ cups panko crispy bread crumbs (topping)
4 tablespoons butter, melted (topping)
1. Heat oven to 375°F. Spray 13x9-inch (3-quart) glass baking dish with cooking spray. Cook and drain macaroni as directed on package, using minimum cook time.
2. In 5-quart Dutch oven, melt 4 tablespoons butter over medium heat. Beat in flour, onion salt, garlic salt and pepper with whisk until thickened. Cook 1 minute longer. Beat in milk. Heat to boiling over high heat, stirring frequently; boil and stir 1 minute. Remove from heat. Stir in 3 cups of the cheese until melted. Stir in macaroni, chicken and frozen broccoli. Pour into baking dish. Sprinkle remaining 1 cup cheese on top.
3. In small bowl, mix bread crumbs and melted butter; stir until combined. Sprinkle over macaroni mixture.
4. Bake 33 to 36 minutes or until mixture is bubbly (at least 165°F in center) and bread crumbs are browned.