Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
Cut the cauliflower head into bite-sized florets and set aside.
In a mixing bowl, combine the flour, garlic powder, onion powder, paprika, salt, and black pepper. Mix well.
Gradually add water to the dry ingredients, whisking until you achieve a smooth, thick batter.
Dip each cauliflower floret into the batter, allowing the excess to drip off, then roll it in the breadcrumbs until fully coated.
Place the coated cauliflower bites on the prepared baking sheet in a single layer. Drizzle with olive oil.
Bake in the preheated oven for 20-25 minutes, flipping the bites halfway through baking for even crispness.
Remove from the oven and let cool slightly before serving.