In a large, heavy-bottomed pot, heat olive oil over medium heat. Saute onions, celery, carrots, collards and garlic with salt. When vegetables are soft and aromatic, add broth and tomatoes. Raise heat and bring to a rolling boil. Mix turkey, egg, parsley, and parmesan well. Using a small scoop or tablespoon, form small meatballs and drop them into the broth, stirring gently to distribute them evenly . Add the pasta. Cover the pot and drop the heat to simmer for 15-20 minutes. Serve with fresh, crusty Italian bread and enjoy.