This is the best place I know for Pasta in Paris (at least up till now!).
92 rue Montorgueil
75002 Paris, France
We tried the Penne Max (13 euros, with red peppers, tomatoes, basil):

and the Lasagne di Carne (13 euros):

These were really tasty, very good ingredients, perfectly cooked, plus this street is one of my favorites in Paris.
Update: a few other pictures/dishes from later visits. Rigatoni all’Amatriciana (14 euros):

Fusili Funghi (12 euros):

Insalata Italiana (12 euros):

… and yet a few more (same price range):
Plate of antipasti:

Penne alla carbonara:

Rigatoni alla mantovana (pumpkin):
