Preheat the oven to 350 degrees F (180 degrees C). Grate the Mozzarella Cheese (2 cup). Peel and slice and soak Eggplant (1) in salted water.
Spray the bottom of a large cup muffin pan with Nonstick Cooking Spray (to taste). Sprinkle the bottom of each muffin cup with a teaspoon of Parmesan Cheese (1 cup).
Add a slice of eggplant.
Sprinkle another teaspoon of Parmesan and a little mozzarella cheese over each eggplant slice.
Repeat layers until all is full, ending with mozzarella.
Melt Butter (4 tablespoon). Whisk together Egg (3) and melted butter. Pour egg mixture evenly into each muffin cup. Push the eggplant and cheese down a little to mix the egg mixture evenly through the layers.
Bake at 350 degrees F (175 degrees C) for approximately 30 minutes; or until muffins are puffy and lightly brown. During this time you can heat the marinara sauce (to taste).
Serve with Marinara Sauce (to taste) and enjoy!