Sauté the Aromatics: Heat the olive oil in your pot over medium heat. Add the chopped onion and sauté for 3-4 minutes until softened and translucent. Add the minced garlic and red pepper flakes (if using) and cook for another minute until fragrant.
Build the Base: Add the halved cherry tomatoes to the pot. Cook for about 5 minutes, stirring occasionally, until they start to soften and release their juices.
Combine Everything: Now for the magic. Add the dried pasta, vegetable or chicken broth, and dried oregano to the pot. Stir everything together, ensuring the pasta is mostly submerged in the liquid. Season with a good pinch of salt and pepper.
Simmer to Perfection: Bring the mixture to a boil, then reduce the heat to a steady simmer. Cover the pot and let it cook for about 15-20 minutes, or until the pasta is al dente. It’s crucial to stir every few minutes to prevent the pasta from sticking to the bottom of the pot.
The Finishing Touches: Once the pasta is cooked to your liking and most of the liquid has been absorbed, creating a luscious sauce, remove the pot from the heat. Stir in the fresh basil and grated Parmesan cheese. The residual heat will wilt the basil and melt the cheese, further thickening the sauce.
Serve and Enjoy: Taste and adjust the seasoning with more salt and pepper if needed. Serve immediately in warm bowls, with an extra sprinkle of Parmesan cheese and a few fresh basil leaves.