Preheat oven to 400°F (205°C) and line a baking sheet with parchment paper.
Grate zucchini using a box grater.
Place grated zucchini in a clean kitchen towel and squeeze out as much liquid as possible.
In a large bowl, combine drained zucchini, feta, eggs, almond flour, garlic, oregano, salt, pepper, and Parmesan.
Stir until well incorporated; mixture should hold together when pressed. Add more almond flour if too wet.
Scoop about 2 tablespoons of the mixture and shape into small cylinders or tots.
Place tots evenly spaced on the prepared baking sheet.
Lightly spray the tops with olive oil.
Bake for 20–25 minutes, flipping halfway through for even browning.
Optional: broil for 1–2 minutes at the end for extra crispiness, watching carefully.
Serve immediately for maximum crunch.