Preheat oven to 425°F and line a large baking sheet with parchment paper, then spray lightly with cooking spray.
Pat zucchini sticks completely dry with paper towels to remove excess moisture.
In a shallow bowl, whisk together almond flour, parmesan cheese, garlic powder, smoked paprika, cayenne pepper, salt, and black pepper.
In another shallow bowl, beat the eggs until well combined.
Dip each zucchini stick first in the egg, letting excess drip off, then coat thoroughly in the almond flour mixture, pressing gently to adhere.
Arrange coated zucchini sticks in a single layer on the prepared baking sheet, making sure they don't touch.
Bake for 20-25 minutes, flipping halfway through, until golden brown and crispy on all sides.