In 1.5 quart casserole, combine green onion and margarine. Microwave in casserole until tender on High, about 1.5 minutes. Stir in flour, soup, water, ham and lemon juice. Microwave, covered for 8 minutes more. Stir every few minutes. Sprinkle with grated nutmeg. MC formatting and posted bybobbi744@sojourn.com