In a 1-quart micro-wave safe casserole stir together green onions, margarine, parsley flakes, Italian seasoning and salt. Cook, covered on high, or 100% power for 1 2/2 minutes or until onions are tender. Stir in frozen potatoes. Cook, covered, on high for 5 to 7 minutes or until heated through, stirring once. Add parmesan cheese; toss to coat.