Prep the zucchini: Wash and trim the ends. Cut each zucchini into sticks about the size of thick fries—around 3 inches long and 1/2 inch thick.
Pat them dry with paper towels.
Set up three bowls: In one bowl, add the flour. In a second bowl, whisk the eggs. In a third bowl, combine breadcrumbs, Parmesan, garlic powder, onion powder, Italian seasoning, smoked paprika, salt, and pepper.
Add the cheese: Toss the shredded mozzarella with the breadcrumb mixture so it sticks evenly to the breading and doesn’t clump.
Coat the sticks: Dredge each zucchini stick in flour, tap off the excess.
Dip into egg, then press into the breadcrumb-cheese mixture until well coated. Place on a baking sheet or plate as you work.
Choose your cooking method: Bake: Heat oven to 425°F (220°C). Line a baking sheet with parchment.
Arrange sticks in a single layer. Lightly spray with olive oil. Bake 18–22 minutes, flipping once at the 12-minute mark, until golden and crisp.
Air-fry: Preheat to 400°F (205°C).
Arrange in a single layer. Air-fry 8–10 minutes, flipping halfway, until browned and crisp. Work in batches.
Pan-fry: Heat 2–3 tablespoons olive oil in a nonstick skillet over medium heat.
Cook sticks 2–3 minutes per side until crisp and golden. Drain on paper towels.
Season and serve: Sprinkle with a pinch of salt while hot. Serve right away with your favorite dipping sauce.