Preheat oven to 400F (200C) and line a baking sheet with parchment paper.
In three separate bowls, set up a breading station: flour in the first, beaten eggs in the second, and panko mixed with paprika, garlic powder, salt, and pepper in the third.
Dredge each cauliflower floret in the flour, dip into the egg, and then coat thoroughly with the seasoned panko breadcrumbs.
Arrange the coated cauliflower on the prepared baking sheet in a single layer, ensuring they do not touch.
Bake for 20 to 25 minutes, flipping halfway through, until the coating is golden brown and crispy.
In a small bowl, whisk together the mayonnaise, minced garlic, lemon juice, and dried parsley to create the garlic sauce.
Serve the cauliflower bites hot with the garlic sauce on the side.