Before we get started, preheat your air fryer to 400°F (200°C). A hot air fryer means no waiting around, and you’ll achieve that sought-after crispiness in no time.

Wash and dry the zucchini. Next, cut them into half-moon slices, about ½ inch thick. This size helps them cook evenly while maintaining that lovely texture.

In a large mixing bowl, combine the zucchini slices with olive oil, salt, black pepper, garlic powder, onion powder, and lemon zest. Toss until every piece is well-coated. This step is essential, as it infuses the veggies with flavor right from the beginning.

Once the zucchini is seasoned, sprinkle the panko breadcrumbs over them. Gently toss to ensure an even coating. The crumbs will crisp up beautifully, creating a delightful contrast to the tender zucchini.

Place the seasoned zucchini in the air fryer basket in a single layer, making sure they aren't overcrowded. This is key to achieving that perfect crisp. Cook for about 10-12 minutes, shaking the basket halfway through to ensure even cooking.

As soon as the timer goes off, open the basket and sprinkle the finely shredded Parmesan cheese over the hot zucchini. The residual heat will melt the cheese and impart its delicious flavor.

Transfer your air-fried zucchini to a serving platter and dig in while they’re hot! These bad boys are best enjoyed fresh, but save some for the next day's lunch.