Preheat oven to 350°F. Boil macaroni to al dente according to package instructions; drain and return to pan.
Add packaged cheese sauce, blue cheese, TABASCO® Buffalo Style Sauce, chicken and green onion; mix well.
Spoon into an ungreased 2-quart casserole dish and top with bread crumbs. Bake for 20 minutes or until heated through.
Makes 8 servings.