1. Stir together milk, broth, flour, mustard and onion powder in microwavable dish.
2. Microwave cream sauce on HIGH for 4-6 minutes, stirring well every 2 minutes. Cook until thick and stir in cheddar cheese.
3. Spread broccoli into lightly sprayed 11 x 9-inch baking dish. Pour cheese sauce evenly over the top.
4. Sprinkle with mixture of cornflakes and Parmesan cheese topping.
5. Broil until golden brown.
Nutrition Information: cal 120, fat 4g, sodium, 330, carbs 11g, fiber 2g, protein 7g