In a small microwave-safe bowl, cook margarine or butter on 100% power (high) for 20 to 40 seconds or until melted; set aside. In a 3-quart microwave-safe casserole combine the olive oil, garlic, salt, and red pepper. Stir in raisins and nuts. Micro-cook, covered, on 100% power (high) for 1 minute, stirring once. Add spinach. Spoon melted margarine over spinach. Toss well to coat. Micro-cook, covered, on 100% power (high) for 1-1/2 to 3 minutes or until spinach is just wilted and heated through, stirring once. Sprinkle with cheese before serving. Makes 4 servings.