Eggplant Parmigiana Pasta Bake

Name: Eggplant Parmigiana Pasta Bake
Ingredients: 2 lb. ziti or rigatoni pasta; 3 tbsp. olive oil; 4 medium celery stalks; 2 clove garlic; 1 large onion; 1 medium eggplant; 1 can crushed tomatoes; 1 can diced tomatoes; 1 tsp. salt; 1 c. plain dried bread crumbs; 1 c. loosely packed, fresh parsley leaves; ½ c. freshly grated Parmesan cheese; 1 package part-skim mozzarella cheese