In a large skillet, cook the sausage, red pepper, mushrooms, onion and garlic over medium heat until sausage is no longer pink and vegetables are tender; drain. Add broth; bring to a boil. Cook until liquid is reduced by half. Add the tomatoes and Italian seasoning. Bring to a boil. Reduce heat; simmer, uncovered, for 15 minutes.
Cook the pasta according to package directions. Meanwhile, in a large saucepan, heat the cream. Slowly stir in the sausage mixture; cook and stir for 5 minutes. Drain pasta; toss with creamy sausage mixture. Sprinkle with Parmesan cheese and basil if desired.