01 - Bring a large pot of salted water to a boil for cooking the ravioli.
02 - Heat olive oil in a large skillet over medium heat. Add chopped garlic and sauté for 30 seconds until fragrant, taking care not to burn it.
03 - Pour in crushed tomatoes, then add sugar, dried oregano, red pepper flakes, salt, and black pepper. Simmer for 8–10 minutes, stirring occasionally, until the sauce slightly thickens.
04 - Add ravioli to the boiling water and cook according to package directions, typically 3–4 minutes, until they float to the surface. Drain gently using a slotted spoon or colander.
05 - Stir chopped basil into the sauce, then gently fold in the drained ravioli until evenly coated. Serve immediately, topped with grated Parmesan and additional fresh basil leaves.