Slice the eggplant lengthwise.
Sprinkle salt and let sit for 10 minutes to remove moisture.
Heat olive oil in a pan and grill the eggplant on both sides.
Mix tomato sauce with cooked lentils.
Layer grilled eggplant, tomato sauce, and ricotta cheese in order.
Bake in the oven at 180°C for 20 minutes to finish.