Peel and slice eggplant into ⅛” thick pieces. A mandoline really helps! Salt eggplant pieces in a colander with kosher salt in layers. Do this for 1 hour, then rinse eggplant to remove excess salt. Thoroughly pat dry the eggplant pieces.
Next, dip eggplant pieces into flour and shake off excess. Then dip into egg and shake off, and finally the seasoned breadcrumbs. Place breaded eggplant pieces on a parchment paper lined tray and prepare oil for frying.
Add a ½" olive or vegetable oil to a large heavy pan and heat to 350f. Fry eggplant pieces until golden on both sides (about 2 minutes per side) and place on a wire rack or paper towel lined tray.
Place a ¼" of marinara sauce into the bottom of a 10 by 15" baking dish.
Place 2-3 tablespoons of the ricotta mixture into the middle of each eggplant piece and roll. Place all the filled eggplant rollatini seam side down into the baking dish.
Spoon a bit more sauce on top of each piece of rollatini (don't completely cover) and grate 2 tablespoons of Pecorino Romano on top. Bake for 20-25 minutes or until hot. Serve eggplant rollatini with remaining sauce. Enjoy!