Heat oven to 375°F. Cook and drain pasta as directed on package. Return to saucepan.
Stir remaining ingredients except bread crumbs and butter into pasta. In ungreased 2-quart casserole, spread pasta mixture. In small bowl, mix bread crumbs and butter; sprinkle around edge of casserole.
Bake uncovered 25 to 30 minutes or until hot and bubbly.