Chicken Spaghetti

Name: Chicken Spaghetti
Ingredients: 3 tablespoons grapeseed oil, divided; 3 ribs celery, small dice; 1 medium yellow onion, small dice; 2 tablespoons minced garlic; 1 large red or green bell pepper, seeds removed and roughly chopped; 10 ounces tomato juice (recommended: V8); 2 (12 to 15-ounce) cans whole peeled tomatoes; 1 teaspoon dried oregano; 2 pounds boneless chicken, boiled and pulled into bite-size pieces; 1 tablespoon minced basil leaves; 1 cup chicken broth; 1 1/2 pounds spaghetti, cooked; 1 green onion, cut on bias; 1 cup grated Parmesan