Chicken Rotini Stovetop Casserole

Bring a large pot of lightly salted water to a boil. Add pasta, and cook for 8 to 10 minutes, or until al dente; drain.
Combine half-and-half and butter in a saucepan over medium heat. Boil gently, stirring, until mixture has reduced to 1 1/2 to 1 2/3 cups. Remove pan from heat; whisk in cheese, basil, oregano, chives, and parsley. Cover, and set aside.
Saute chicken in a large skillet until lightly browned on both sides. Stir in green and red bell pepper, and cook until vegetables are tender, and chicken is no longer pink in the middle.
In a casserole dish, combine the hot cooked pasta, chicken mixture, and sauce. Mix well, and serve immediately.