For a crispy crumb-topped casserole, heat oven to 350°F. Mix ingredients as directed; spoon into 10x6-inch baking dish. Sprinkle with 1 cup fresh bread crumbs; drizzle with 2 Tbsp. melted butter. Bake 20 min. or until heated through.
Prepare as directed, adding small broccoli florets instead of peas to the boiling water for the last 4 min. of the Macaroni cooking time.