In a microwave-safe bowl, combine brussels sprouts and water. Cover and microwave on high for 5-7 minutes or until crisp-tender, stirring once. Drain.
Stir in soup and milk. In a small bowl, combine the bread crumbs, walnuts, butter and pepper; sprinkle over brussels sprouts. Microwave, uncovered, on high for 2-3 minutes or until heated through. Yield: 4 servings.