Begin by cooking the fusilli pasta. In a large pot, bring salted water to a boil. Add the pasta and cook according to the package instructions until al dente. Reserve ½ cup of pasta cooking water, then drain the pasta using a colander and set aside.
In a medium saucepan, heat the olive oil over medium heat. Add the minced garlic and sauté for about 1 minute until fragrant, being careful not to burn it.
Pour in the crushed tomatoes and stir in the heavy cream, oregano, salt, and black pepper. Bring the sauce to a simmer and cook for about 5-7 minutes, stirring occasionally until it thickens slightly.
Add the cooked pasta to the sauce, tossing gently to coat the pasta. If the sauce is too thick, add a little reserved pasta cooking water to reach your desired consistency.
Stir in the chopped basil leaves and mix well. Taste and adjust seasoning if necessary.
Serve immediately, and top with grated Parmesan cheese if desired.