Spaghetti with Zesty Bolognese

Hey moms,

this was a good supper.  I actually forgot to add the cream cheese and it was still really good.  I also used a mix of spinach and regular spaghetti.  Clark even enjoyed it.

1 small onion, chopped

1/4 cup  Light Zesty Italian Dressing

1 lb. extra lean ground beef

1 can  (15 oz.) tomato sauce

1 can (14 oz.) diced tomatoes, undrained

2 Tbsp.  1/3 Less Fat than Cream Cheese

12 oz. spaghetti, uncooked

1/4 cup  Grated Parmesan Cheese

L.