Mix hamburger and macaroni.
In a separate pan, mix: tomato sauce and tomato paste, sugar, onion salt, garlic salt and oregano.
Then add the sauce mix to the hamburger and macaroni.
Put ½ of this mixture in a 2-qt. casserole dish and top with half the mozzarella.
Then add the remaining mixture and top with another layer of cheese.
Bake at 350 degrees for 30-40 minutes.
NOTE: I like to add Hormel’s mini pepperonis to this casserole, too.