Preheat your oven to 375°F (190°C).

Slice the zucchinis into thin rounds. Salt the zucchini slices and let them sit for 10-15 minutes to remove excess moisture. Pat them dry with a paper towel.

In a small bowl, mix the ricotta cheese with garlic powder, oregano, salt, and pepper.

Grease a loaf pan with olive oil. Layer the zucchini slices at the bottom of the pan, followed by a layer of ricotta cheese, marinara sauce, and shredded mozzarella. Repeat the layers until all ingredients are used, finishing with a layer of mozzarella cheese on top.

Cover the pan with foil and bake for 25 minutes. After 25 minutes, remove the foil and bake for an additional 10-15 minutes, until the cheese is golden and bubbly.

Remove from the oven and let it cool for a few minutes before slicing into portions. Serve and enjoy!