– 4 plum tomato, cut into small cubes
– ¼ teaspoon oregano (dry, ground)
– 2 cups tomato sauce
– ¼ tablespoon vinegar, (optional)
– ½ cup evaporated milk, (optional)
– ¼ teaspoon pepper (freshly-cracked, or ground), or to taste
– ¼ cup grated Parmesan cheese, (optional)