Instructions

  1. Melt the margarine in a large sauce pan. Saute the onion until transparent.
  2. Blend in the flour and seasonings.
  3. Stir in the milk gradually; cook until thickened.
  4. Add the cheddar cheese; stir until melted.
  5. Add the macaroni and the canned tomatoes, mixing well.
  6. Pour into a greased 2-qt baking dish. Slice the fresh tomato and arrange on top. Sprinkle the Parmesan cheese over the surface.
  7. Bake in a moderate oven (375*F) for 30 to 35 minutes.