Brown the ground beef and onion in a saute pan. Remove the ground beef from the pan and drain on paper towels to remove all the grease. Place the ground beef in a microwavable bowl. Add the tomato sauce, sugar, ketsup, garlic and oregano to the bowl. Stir to combine. Microwave for 1 minute. Add the creamed cheese and Parmesan Cheese to the bowl, microwave for 2 minutes or until creamed cheese has melted. Salt and pepper to taste. Stir to combine, serve hot with crackers or Doritos.