Cajun Chicken Pasta

Name: Cajun Chicken Pasta
Ingredients: 1 pound fettuccine; About 3 teaspoons Cajun spice mix; 3 whole boneless, skinless chicken breasts, cut into cubes; 2 tablespoons butter; 2 tablespoons olive oil; 3 cloves garlic, minced; 1 whole green bell pepper, seeded and sliced; 1 whole red bell pepper, seeded and sliced; 1/2 large red onion, sliced; Salt; 4 whole Roma tomatoes, diced; 2 cups low-sodium chicken broth; 1/2 cup white wine; 1 cup heavy cream; Cayenne pepper, for sprinkling; Freshly ground black pepper; Chopped fresh parsley, for garnish