In another shallow plate add the flour which you also need to season with salt and pepper.
In a shallow plate, combine Panko breadcrumbs, Parmesan cheese, oregano and season with salt and pepper if preferred; set aside.
Preheat oven to 400 F degrees. Line a large baking sheet with parchment paper.
Lay out a couple paper towels and place the zucchini rounds on the paper towels. Sprinkle zucchini with salt on both sides. Cover zucchini slices with more paper towels and press down them. Leave for about 20 minutes. After 20 minutes you will notice that the paper towels are wet and the zucchini slices are pretty dry.