Cajun Chicken Pasta

Ingredients

• 2 boneless, skinless chicken breasts
• 2 tablespoons olive oil, divided
• 1 tablespoon "Cajun Seasoning"
• 8-10 ounces penne pasta
• 2 tablespoons butter
• 3 cloves minced garlic
• 1 cup heavy cream, or more, to taste
• 1/4 cup freshly grated Parmesan
• Kosher salt and freshly ground black pepper, to taste
• 2 Roma tomatoes, diced
• 2 tablespoons chopped fresh parsley leaves
• Green bell pepper
• Red bell pepper
• Onion
• 1 qt chicken broth
• Fresh parsley