In a food processor place, tomatoes, tomato paste, chopped parsley, minced garlic, oregano, salt, and pepper. Blend until smooth.
In a large skillet over medium heat sauté the finely chopped onion in olive oil for 2 minutes. Add the blended tomato sauce and white wine. Simmer for 30 minutes, stirring occasionally.
Meanwhile bring a large pot of water to a boil. Cook ravioli per package instructions. Drain and set aside.
When sauce is ready combine the cooked ravioli and marinara sauce in a medium sized saucepan over medium-high heat; cook for 1 minute or until warm tossing to coat the pasta and serve spooning into a long serving platter. Garnish with shaved Parmesan cheese or chopped basil.