Spaghetti al Forno

Name: Spaghetti al Forno
Ingredients: 1½ tbsp. olive oil; 1 small onion; 2 carrots; 1 stalk celery; 4 clove garlic; 1 can diced tomatoes; Salt and freshly ground pepper; ½ lb. whole wheat spaghetti or linguine; 2 tbsp. Chopped flat-leaf parsley; 1 large pinch red pepper flakes; ¾ c. grated Parmesan cheese; 2 tbsp. whole wheat breadcrumbs