Salt water and cook pasta according to package directions. Drain and set aside.
Heat oil and cook sausage, 2-3 minutes. Add onion and red bell peppers meat is completely cooked. Add crushed tomatoes and tomato paste. Bring to a boil.
Turn to low heat, stir in seasonings and simmer, covered, for 5 minutes.
Add pasta. Simmer uncovered for another 5 minutes or until sauce has thickened.