Preheat oven to 375f
Spray 8x8 pan liberally
Heat oil in large skillet then add diced eggplant and season with salt & pepper. Cook for 5 minutes stirring frequently until softened.
Add crushed tomatoes and heat through.
Layer zucchini to cover the bottomĀ of the dish. (overlapping is ok)
Spread 1 cup of ricotta over zucchini and 1.5 cups of eggplant mixture
Top with the second layer of zucchini (running opposite direction of the first layer).
Spread remaining ricotta cheese and eggplant mixture (leaving about 1/2 cup for top layer)
Add the final layer of zucchini, top with remaining eggplant mixture and sprinkle with cheese (if desired)
1Cook for 30-40 minutes until heated through.
1Let it cool and set about 10 minutes before slicing.