Preheat the oven to 425°F (220°C).
Line a baking sheet with parchment paper and lightly coat with cooking spray.
Cut the zucchinis into sticks, about 3 inches long and 1/2 inch thick.
In a shallow dish, combine the panko breadcrumbs, Parmesan cheese, garlic powder, paprika, salt, and black pepper.
In another shallow dish, beat the eggs.
Dip each zucchini stick into the beaten eggs, then coat with the breadcrumb mixture, pressing lightly to adhere.
Place the coated zucchini sticks on the prepared baking sheet in a single layer.
Lightly spray the zucchini sticks with cooking spray.
Bake for 20-25 minutes, or until golden brown and crispy, turning halfway through.
Serve immediately with your favorite dipping sauce.