Directions: Sauce - Saut, the onion, celery, and garlic in oil in a large skillet until tender. Add the tomatoes, tomato paste, salt, pepper, parsley, oregano and bay leaf. Simmer uncovered for about 15 minutes or until desired consistency. Remove bay leaf and set aside. Eggplant - Combine the flour and salt. Dip the eggplant in the egg and then in the seasoned flour. Saut, the eggplant slices in hot oil in a skillet, 3 minutes per side. Drain slices well on a paper towel. Place half of the eggplant in a single layer in a 10x6x2 baking dish, cutting slices to fit. Sprinkle with half of the parmesan cheese, half of sauce and half of mozzarella. Cut remaining mozzarella into triangles. Repeat layers. Bake uncovered at 400 degrees for 15-20 minutes. Serves 6.