Layer the ingredients into a 9 inch baking dish starting with the eggplant, then pasta sauce, then cheese, then zucchini and repeat until the dish is full
Save about a quarter of both cheeses to put on top of the dish
Cover with foil and bake in a 400 degree Fahrenheit oven for 35 minutes
After 35 minutes remove foil and sprinkle the remaining cheese on top of the dish and bake for 10 more minutes or until the the cheese is melted