Bring water to boil according to ravioli package directions.
Melt butter in skillet over medium to medium high heat.
Add prosciutto or ham and cook five minutes.
Add tomatoes and cook an additional four minutes.
Add ravioli to boiling water to cook.
Add sage and pepper.
Stir cream into tomato & prosciutto mixture, stir well.
Bring to boil and lower heat to simmer.
Add cheese and toss to coat.
Enjoy!