Preheat oven to 350 degrees F (175 degrees C).
Cook pasta according to package directions, drain and set aside.
In a large skillet, melt butter over medium heat; add bell peppers and jalapenos and cook until softened.
Add garlic, stirring for 1 minute more; then add flour, stirring constantly until the mixture is golden.
Gradually add cream and Parmesan cheese to the skillet; whisk continuously until the sauce is smooth.
Add chicken to sauce and simmer for 5 minutes, stirring occasionally.
Mix pasta with chicken-sauce mixture and transfer to a medium-sized baking dish.
Step 8
Bake in preheated oven for 25 minutes or until golden brown on top.
Step 9
Serve hot with your favorite sides, such as garlic bread or a Caesar salad.