The Modern Nonna

0 Preheat the oven to 400F (200C). 
6 Peel each eggplant, then cut into 4 slices lenghtwise. Trim the rounded end pieces so that they are flat and even on each side (and easy to roll, once cooked). Don’t discard any peeled scraps as you can use them in your cooking for other recipes. 
2 Set the eggplant slices on a baking sheet and drizzle each piece on both sides with olive oil plus season with salt. Bake for 15 to 20 minutes, until the eggplant are soft. Place the cooked eggplant to the side to cool while you make the filling. 
3 In a bowl, add the ricotta, egg, if using, grated parm, and dill, if using, and season with salt. Mix until well combined. 
4 Cover the base of a small oven-safe pan (we used an 8x8 inch pan) with a thin layer of marinara.
7 Take one slice of eggplant so that the wider side is closest to you and place about 1 teaspoon of the ricotta mixture on the widest part. Gently roll the eggplant and place it in the pan. Continue until all the eggplant slices are rolled and neatly placed in rows in the pan. 
8 Top the rolls with the rest of the marinara sauce and the mozzarella. 
5 Bake for 20 to 25 minutes, or until the mozzarella is melted and bubbly.