Steps
1. Cook the spaghetti according to package instructions until al dente.
2. In a pan, heat the olive oil over medium heat and sauté the minced garlic until fragrant.
3. Add the canned diced tomatoes and dried oregano to the pan, stirring well.
4. Season with salt and pepper, then let the sauce simmer for about 10 minutes.
5. Drain the spaghetti and toss it with the tomato sauce.
6. Serve warm, garnished with fresh basil and grated Parmesan cheese if desired.