In large skillet heat and add 1 Tbsp butter and add onion and pepper. saute'

cut chicken into 1" cubes and in med bowl put chicken cubes with dressing. Set aside till veggies are cooked.

boil water for pasta...once boiling add pasta cook according to box

add chicken and dressing into skillet and cook chicken till no longer pink. about 10-15 mins

once chicken is cooked add tomato sauce and diced tomatoes. Add salt,pepper, crushed red pepper, basil, oregano, and garlic powder.

simmer for 10-15 mins or till warmed through.

mix pasta and sauce together and serve.