This is a very common chip in Greek restaurants, sans Parmesan. These are super crispy and hold up pretty well. I find them to be a nice alternative to potato chips.
Achieving super crispy zucchini chips hinges on thorough moisture removal. Do not skip or rush the salting and pressing steps; excess water is the enemy of crispness. Maintaining the oil temperature between 350-360°F (175-182°C) is paramount; too low and chips absorb oil and become greasy, too high and they burn before crisping. Fry in small batches to prevent the oil temperature from dropping drastically, ensuring consistent crispness. While a grill provides unique heat, a stovetop with a heavy-bottomed pot and careful temperature control works equally well. For best flavor, always grate fresh Parmesan just before serving.