Empty peeled plum tomatoes into a bowl and break them up with your hands or a spoon.
Heat olive oil in a saucepan and add garlic. Gently fry
Add the peeled plum tomatoes to the saucepan
on low to medium heat for 10 minutes. Season the sauce with salt. Add the basil
leaves at the end.
Remove the sauce from the heat, add the ricotta and Parmigiano. Serve immediately.