Melt butter in a skillet and add onion and sauté until tender. Sprinkle with flour and stir until thickened. Add cold milk and stir until mixture thickens. You may need to add more milk or four to achieve desired consistency. Place peas in a lightly greased baking dish. Pour milk mixture over peas. Sprinkle with bread crumbs and cheese and bake at 350 degrees for 35 minutes.

The Skinny: Use low fat milk and cheese.