Cut one end off of the zucchini. Slice on a mandolin set to 3/16”. Lay the slices on a few paper towels and sprinkle with salt. Allow to sit for 5-10 minutes. Wipe the slices with a paper towel to remove excess moisture and salt.
Lay the zucchini on a sheet pan lined with parchment paper in a single layer.
Top with 1-2 teaspoons of sauce. You want to cover most of the zucchini but in a thin layer.
Sprinkle with mozzarella cheese, parmesan cheese, and Italian seasoning.
Add additional toppings if desired.
Bake at 400F for 10 minutes. Serve with fresh basil or parsley.