Once the sliced zucchini has baked and is cool enough to handle, line the bottom of the casserole dish with a thin layer of homemade meat sauce. Then line the slices of zucchini going in the same direction.
Add a couple of spoonfuls of sauce to cover the zucchini, then place a couple of spoonfuls of ricotta cheese on top, spreading it across the sauce.
Sprinkle some shredded parmesan on the ricotta filling.
Then, add the sliced black olives across the creamy ricotta cheese.
Add another layer of zucchini, this time placing it in the opposite direction. For example, if your first layer was placed horizontally, then your next layer will be placed vertically, alternating there after, all while adding the meat sauce, then the cheeses, then the black olives.
Continue with this pattern until you are out of zucchini strips.
Make sure you save enough sauce to cover the last layer of zucchini noodles.
Then, sprinkle the shredded mozzarella to the top.