Cut the cauliflower into bite sized florets and rinse thoroughly, then allow to drip dry for a few minutes.
Toss the cauliflower florets in the flour, then remove and set aside.
Combine the remaining flour, the breadcrumbs, panko, salt, pepper, garlic powder, onion powder, and paprika and set aside.
In a deep fryer or large sauté pan, heat the oil to about 350 degrees.
Dredge the flour coated florets in the egg, then coat with the breadcrumb mixture and place on a baking sheet.
When the oil reaches temperature, fry the cauliflower bites in small batches, ensuring you don't overcrowd the fryer or pan and drop the temperature too quickly.
Fry the florets until golden brown. Remove from the oil and transfer to a paper towel covered plate. Sprinkle with a pinch of sea salt, a sprinkle of sesame seeds, and sliced green onions.
Serve with your favorite dipping sauces. These go especially well with a sweet chili sauce.