Cook the pasta according to the direction on the packaging and drain.
Mince the shallots. Heat the butter in a skillet and add the shallot. Cook them light brown and soft.
Add the whipping cream to the shallot and add the mozzarella. Keep on low heat and melt the mozzarella. The sauce should become slightly thicker. (NOTE 1)
Season with salt and pepper. Add some nutmeg if you like.
Halve the tomatoes and chop the sage leaves fine.
Add the drained pasta to the cream sauce and mix. Pour mixture into 2 bowls.
Thinly slice the Gorgonzola cheese and cover the pasta.
Place bowl a few minutes under a hot broiler and allow the cheese to melt.
Bake tomato-halves in skillet while the cheese melts, add the chopped sage at the last minute and divide tomatoes over bowls, just before serving.
Notes
If the mozzarella lumps together, add a little bit of lemon juice and the lumps will disappear.