I found this in a Taste of Home magazine from a while back. It's also all over the internet.
Cook Time: 25 min.
3 c. penne pasta, uncooked
1 lb. Italian sausage
1 green bell pepper, cut into thin strips, bite size
1 red bell pepper, cut into thin strips, bite size
1 jar (24 oz.) spaghetti sauce
1 tsp. fennel seed
dash of crushed red pepper
4 oz. cream cheese, cubed
1/4 c. shredded Parmesan cheese
Cook pasta as directed on package. Meanwhile, brown sausage in a large skillet. Add peppers and stir about 5 minutes. Stir in next 3 ingredients and cook for 5 minutes. Add cream cheese and stir until melted and mixed in well.
Drain pasta and add to sausage mixture. Stir it all together and serve with grated Parmesan sprinkled on top.