Trim zucchini, then slice lengthwise (not too thick), place zucchini slices in a large bowl and toss with 1 tablespoon of salt, leave for 20 minutes, then rinse and drain.
Dredge the zucchini slices in flour.
Grease lightly a small to medium ( I used 10 x 8"/27 x 21 centimeter) baking dish. Do 3 layers, start with zucchini then mozzarella and sprinkle with grated parmesan cheese, continue for 3 layers. Bake in pre-heated over for approximately 25 minutes. Let sit 5 minutes before serving. Enjoy!