Measure Rice Krispies cereal. Crush 1 1/2 cup. Place in shallow dish or pan. Set aside. Make 4 sandwiches using 1 slice cheese and 2 slices bread for each. Set aside. In a second shallow dish or pan, beat eggs, milk and salt until foamy. Dip sandwiches quickly in egg mixture, turning once. Coat with crushed cereal. Place in single layer on well-greased baking sheet. Drizzle with melted margarine. Bake in oven at 50 degrees F. about 15 minutes or until crisp and golden brown. Yield: 4 servings.