Heat the olive oil. Add the tomatoes, onions and garlic. Sprinkle in the oregano. Season with salt and pepper. Cook over medium heat until the vegetables soften a bit.
Add the brandy. Stir. Allow to cook uncovered for a few minutes. Taste the sauce and add more salt and pepper, as needed. Cover, lower the heat and simmer for about 10 minutes.
Add the sardines, breaking them into smaller pieces.
Continue cooking the sauce, uncovered over medium heat, until chunky and almost dry.
Taste the sauce one last time and add more salt and pepper, if needed. Remember though that you will be adding a lot of cheese so go easy on the salt.
Turn off the heat. Add the pasta to the sauce and toss well.
Add the cheese to the pasta. Toss to distribute evenly.
Sprinkle the pasta with snipped parsley before serving.