Chili's Bayou Chicken with Pasta

got this off the internet, haven't had it at Chili's but Neil loves the dish. We omit the tomatoes because I am the only tomato eater in the house.

12 oz penne pasta
3 tbs. butter
1 1/2 cup half & half
1/2 parmesan
salt and pepper
1 lb. boneless chicken
cajun spice
2 tsp. oil
2 firm tomatoes

1. Bring pot of water to boil. Cook penne according to package.
2. melt butter over medium heat. Add flour, stir 1 minute. Add half & half; thicken about 6 minutes, add parmesan, salt and pepper. cover
3. place chicken between plastic wrap; pound to 1/2 inch thickness. Rub with cajun spice. Warm oil in skillet over medium-high. Cook chicken turning once until no longer pink (6-8 minutes) Slice chicken.
4. Toss pasta with sauce, top with chicken and tomatoes