For Pasta
Follow cooking instructions on package
Instruction for Tomato Sauce
Heat the olive oil in a large saucepan over medium heat. Add the onion and garlic, and cook for 5 minutes.
Add the tomatoes, tomato paste, oregano, basil, and red pepper flakes, if using. …
Reduce heat to medium-low and simmer until sauce thickens slightly—about 20 minutes.
