Spray 9x13" baking dish with cooking spray.
Spoon about ½ cup of tomato sauce on the bottom of dish.
Layer half of the eggplant over tomato sauce.
Top eggplant with 1 cup of the pasta sauce, followed by ½ of the ricotta filling, followed by ¾ cup of mozzarella cheese.
Repeat again, starting with the remaining eggplant, 1 cup pasta sauce, remaining ricotta filling, and remaining ¾ cup of mozzarella cheese.
Cover and bake in 375 degree oven for 25 minutes.
Remove foil and bake an additional 15-20 minutes, until cheese is golden brown.
Let cool for 5 minutes, then serve.
Enjoy!