Fusilli with Tuna and Tomato Sauce

Name: Fusilli with Tuna and Tomato Sauce
Ingredients: 1 pound fusilli; 1 (26-ounce) jar Simple Tomato Sauce, recipe follows or other purchased marinara sauce; 2 (6-ounces each) cans albacore tuna packed in oil, drained; 1 tablespoon drained capers; 1 teaspoon grated lemon peel; Salt and freshly ground black pepper; 1 tablespoon chopped fresh Italian parsley leaves; 1/2 cup extra-virgin olive oil; 1 small onion, chopped; 2 cloves garlic, chopped; 1 stalk celery, chopped; 1 carrot, chopped; Sea salt and freshly ground black pepper; 2 (32-ounce) cans crushed tomatoes; 4 to 6 basil leaves; 2 dried bay leaves; 4 tablespoons unsalted butter, optional