For the meatballs:
1/4 cup milk
1 slice good white bread trimmed of its crust
1 pound ground pork (or beef, or lamb, or a mix of the three)
1 teaspoon chopped garlic
2 tablespoons chopped parsley
1/3 cup freshly grated parmigiano-reggiano (Parmesan)
1 egg
Salt
Black pepper in a grinder
1 cup flour, spread on a plate
Vegetable oil for frying

For the bèchamel:
4 1/2 cups milk
6 tablespoons butter
5 tablespoons flour
1/8 teaspoon grated nutmeg
1/2 teaspoon salt
1/4 teaspoon ground black pepper

To finish:
1 pound rigatoni
3/4 cup freshly grated parmigiano-reggiano
1 tablespoon butter
1/4 cup milk