Peel the casings off the sausages and break the meat into small chunks. In a large skillet, cook the sausage over medium-low heat, until cooked through; drain off the fat and crumble the sausage into small pieces.
Add the tomatoes to the skillet with the sausage and mix well. Add the cream and cook over medium heat until the sauce begins to thicken.
Meanwhile, cook the pasta until al dente, drain and add to the sauce. Add the peas and grated Parmesan cheese, and mix until the pasta is well coated.