Preheat oven to 450 degrees F.
Slice zucchini into thin rounds.
Combine Italian dressing and beaten egg in a wide bowl or dish.
In another dish combine Panko, basil, oregano, and Parmesan cheese.
Dredge the zucchini in the dressing and then the crumbs.
Place on a baking sheet covered in foil and sprayed with cooking spray.
Bake for 20 minutes or until golden brown and crispy.
Serve with marinara sauce if desired.