Chicken Jambalaya

Name: Chicken Jambalaya
Ingredients: 2 tablespoons canola oil, divided; 1 1/2 pounds boneless, skinless chicken thighs, cut into bite-size pieces; Kosher salt and freshly ground black pepper; 1 medium yellow onion, chopped; 1 green bell pepper, chopped; 2 stalks celery, chopped; 1 tablespoon chopped garlic; 1 tablespoon Cajun seasoning; 1/4 teaspoon cayenne pepper; 2 cups long grain rice; 3 cups chicken broth; One 14.5-ounce can diced tomatoes, with juice; 1 tablespoon chopped fresh parsley, for garnish