Nice on a cold winters night.
Heat oil in a large pan. Cook onion and garlic, stirring until onion is soft. Add undrained tomatoes, wine, tomato paste, sugar, vinegar and water. Bring to boil & simmer uncovered for about 20 minutes or until sauce thickens.
Add Marinara mix to sauce & simmer for about 10 minutes or until seafood is cooked through.
Sprinkle with oregano just before serving.