Italian Sausage with stuffing

14 uncooked dry manicotti (pasta tubes) 1/4 cup olive oil 1 cup chopped onion 1 (28 ounce) can Italian tomatoes , coarsely chopped, reserve juice 1 (6 ounce)[...]

2 tablespoons extra virgin olive oil 1 large onion , chopped 2 medium celery ribs , with leaves chopped 2 medium red bell peppers , cored, seeded, chopped 2[...]

14 uncooked dry manicotti (pasta tubes) 1/4 cup olive oil 1 cup chopped onion 1 (28 ounce) can Italian tomatoes , coarsely chopped, reserve juice 1 (6 ounce)[...]

2 tablespoons extra virgin olive oil 1 large onion , chopped 2 medium celery ribs , with leaves chopped 2 medium red bell peppers , cored, seeded, chopped 2[...]