Cut: Cut 2 medium zucchini into ¼-inch thick rounds.
Stir: In a large bowl, toss zucchini with 1 Tbsp olive oil. In a separate bowl, stir together 2 Tbsp breadcrumbs, 2 Tbsp cornstarch, ½ tsp each garlic powder, onion powder, and ¼ tsp each salt, pepper. Sprinkle it over the zucchini and toss to coat.
Cook: Arrange zucchini in a single layer in your air fryer (you may need to work in batches). Air fry at 400°F (204°C) for 8 to 12 minutes, or until crispy and golden brown outside.