Cajun Chicken Pasta

Name: Cajun Chicken Pasta
Ingredients: 3 whole Boneless, Skinless Chicken Breasts, Cut Into Cubes; 3 tsp Cajun Spice Mix, More to taste; 1 lb Fettuccine; 2 tbsp Olive Oil; 2 tbsp Butter; 1 whole Green Bell Pepper, Seeded and Sliced; 1 whole Red Bell Pepper, Seeded and Sliced; 1/2 whole Large Red Onion, Sliced; 3 cloves Garlic, Minced; 4 whole Roma Tomatoes, Diced; 2 cup Low Sodium Chicken Broth; 1/2 cup White Wine; 1 cup Heavy Cream; Cayenne Pepper to Taste; Freshly Ground Black Pepper, To Taste; Salt To Taste; Chopped Fresh Parsley, To Taste