Sauce Preparation: In a large skillet or saucepan, heat olive oil over medium heat. Add minced garlic and sauté until fragrant, about 1-2 minutes. Be careful not to burn the garlic.
Tomato Preparation: Crush the San Marzano tomatoes by hand or with a spoon and add them to the skillet, including the purée. Add oregano, basil, salt, and pepper. Reduce heat to low and let the sauce simmer for 20-30 minutes, stirring occasionally.
Pasta Cooking: While the sauce simmers, bring a large pot of salted water to a boil. Add pasta and cook according to package instructions until al dente. Drain the pasta, reserving a cup of pasta water.
Combining Pasta and Sauce: Add the drained pasta to the sauce, tossing well to coat. If the sauce seems too thick, add a bit of the reserved pasta water to reach desired consistency.
Final Touches: Serve hot, garnished with Parmesan cheese and a sprinkle of red pepper flakes if desired.