Cajun Ranch Chicken with Alfredo Penne

For the chicken:

olive oil

prepared ranch dressing (not the dry mix)

Worcestershire sauce

 Tablespoon Cajun seasoning

 teaspoon salt

 teaspoon lemon juice

 teaspoon white vinegar

 teaspoon ground black pepper, or to taste

 Tablespoon white sugar, or to taste

skinless, boneless chicken breast halves or thighs

For the pasta:

penne pasta

half and half 

heavy cream

garlic, crushed

pepper

 teaspoon Cajun seasoning

butter

shredded Parmesan cheese