Preheat oven to 350 F degrees. Cook pasta according to package directions for 7 minutes; drain.
In a 3 quart baking dish
, stir together hot pasta and chicken.
Meanwhiile, in a large saucepan over medium-high heat, melt butter; add red pepper and green onion. Cook 5 minutes, stirring, or until red pepper is tender. Reduce heat to medium.
Stir in flour; cook 1 minute, stirring constantly. Stir in half & half, chicken broth and sherry. Cook, stirring frequently, until mixture boils and thickens.
Remove from heat; stir in 1/4 cup Parmesan cheese. Add salt to taste.
Pour sauce over pasta mix; sprinkle with remaining Parmesan cheese. Bake 20 minutes or until hot and bubbly. Serves 6. Enjoy!