01 - Sprinkle the eggplant slices generously with salt and allow them to rest for 30 minutes to draw out excess moisture.
02 - Pat the salted eggplant slices dry. Dip each slice in beaten egg, coat thoroughly with breadcrumbs, and set aside on a baking sheet.
03 - Heat canola oil in a large skillet over medium heat. Fry each breaded slice until golden on both sides, about 2 minutes per side. Drain cooked slices on paper towels.
04 - In a 9x13 inch baking dish, spread a thin layer of marinara sauce. Add a single layer of fried eggplant, sprinkle a portion of mozzarella and Parmesan over the top, and repeat layers until all ingredients are used, finishing with cheese.
05 - Preheat oven to 375°F. Cover the dish with foil and bake for 25 minutes, then uncover and bake an additional 10 minutes, or until the cheese is bubbling and lightly browned.
06 - Allow the casserole to cool for 10 minutes before slicing and serving.