Preheat your oven to 400°F.
This is an important start because you want that oven nice and hot when you’re ready to bake.
Slice each eggplant into 1/4-inch thick rounds, keeping them as consistent as possible for even cooking.
In separate bowls, prepare your flour, a mixture of eggs and milk, and breadcrumbs.
Coat each eggplant slice in flour, then dip in the egg wash, and finally cover with breadcrumbs.
Heat olive oil in a skillet over medium heat.
Fry the eggplant slices for about 2 minutes on each side until golden brown and crispy.
Spread a layer of marinara sauce on the bottom of a baking dish.
Layer fried eggplant slices over sauce, sprinkle with mozzarella and parmesan cheese, and repeat until all ingredients are used.
Then, bake for 20-25 minutes.