Sauce for ricotta and spinach ravioli

Ravioli with ricotta and spinach  is one of the great classic dishes of Italian cuisine. They are considered comfort food.
Here’s how you can prepare two different sauces.
Plain: This is perhaps the most popular, simple and effective sauce to enhance the filling of stuffed pasta.
Wash and dry some fresh sage leaves and then place them in a large frying pan with a little butter. After a few minutes, the butter will have melted
and acquired a delicious flavor. Drain the ravioli and gently mix them into the pan with the sauce.