01 - Set oven to 425°F. Line a baking sheet with parchment paper then lightly coat with cooking spray or brush with olive oil.
02 - Whisk together egg and water in a shallow bowl until combined.
03 - In another bowl, mix Parmesan cheese, breadcrumbs, garlic powder, dried herbs, salt, and black pepper.
04 - Dip each zucchini round into the egg wash, allowing excess to drip off, then press into the Parmesan mixture ensuring full coating.
05 - Place coated zucchini slices in a single layer on the prepared sheet without overlapping.
06 - Lightly spray or drizzle olive oil over the coated zucchini slices.
07 - Bake for 20 to 25 minutes, flipping halfway through, until chips achieve a golden brown and crisp texture.
08 - Remove from oven and serve immediately; optional accompaniment includes marinara sauce or preferred dips.