**Prepare the Zucchini:** Grate the zucchinis into a bowl and sprinkle with salt. Let sit for 10 minutes, then squeeze out as much liquid as possible using a clean kitchen towel or cheesecloth.
**Mix Ingredients:** In a large bowl, combine the grated zucchini, egg, breadcrumbs, Parmesan cheese, minced garlic, Italian seasoning, and black pepper. Mix well until the mixture holds together.
**Shape the Bites:** Take small portions of the mixture and form them into bite-sized balls or patties, about 1 inch in diameter.
**Cook the Bites:**
- **Oven Method:** Preheat the oven to 400°F (200°C). Line a baking sheet with parchment paper or spray with cooking spray. Place the bites on the sheet and bake for 15–20 minutes, flipping halfway, until golden brown.
- **Air Fryer Method:** Preheat the air fryer to 375°F (190°C). Place the bites in a single layer and cook for 10–12 minutes, flipping halfway, until crispy and golden.
**Serve:** Let cool slightly before serving with marinara sauce or your favorite dipping sauce.