Spread thin layer of marinara sauce in bottom of pie plate. Layer eggplant slices, slightly overlapping, over sauce to cover bottom of plate. Spread one-third of cheese mixture over eggplant; top with a layer of sauce. Repeat layers 2 more times, layering eggplant, cheese mixture and sauce and ending with final layer of sauce. Top with mozzarella pearls. Cover pie plate with foil.