Bake or pan-fry the sausages until fully cooked; drain and cool. Halve the sausages and cut the split sausages into 1/2" slices. Saute the bell peppers in olive oil over moderate heat only until their crispness is lost, but peppers are not soft. In a heavy sauce pan, add the tomatoes, tomato puree, garlic, olive oil, and fresh basil and bring to a light simmer on moderate heat. Add the sauteed pepper strips and cooked sausage and heat for 3 to 5 minutes.
Serve the pasta, topped with the sausage, peppers and salsa marinara and garnish each plate with a parsley bouquet. Pass the Parmesan.