In Emilia-Romagna, for example, cannelloni are often filled with ragù alla Bolognese -- a rich sauce of meat, vegetables, and mushrooms -- and baked with béchamel and tomato sauce. But in Naples ...

Spoon one-third of the tomato sauce into the base of the dish. Preheat the oven to 200C/180C Fan/Gas 6. Using a teaspoon, fill each cannelloni tube with the cold mince filling. Arrange the ...