1. In a 9×13-inch pan, pour a thin layer of marinara sauce. Layer lasagna noodles, eggplant slices, sauce, and mozzarella cheese. Repeat.
2. Top with lasagna noodles, the rest of the sauce, and Parmesan cheese.
3. Pour the water around the sides of the pan. Cover and bake on 350 degrees Fahrenheit for one hour. For a crispy top, uncover and broil for five minutes.