Mix Ingredients: In a large bowl, combine the shredded chicken, breadcrumbs, Parmesan cheese, parsley (if using), beaten egg, mayonnaise, garlic powder, onion powder, paprika, salt, and pepper. Mix until well combined. Add more breadcrumbs if the mixture feels too wet to hold its shape.

Shape Patties: Divide the mixture into 6 equal portions and shape them into patties about 1/2-inch thick.

Heat Oil: Heat the vegetable oil in a large skillet over medium heat.

Cook Patties: Place the patties in the skillet and cook for 3-4 minutes on each side, or until golden brown and heated through. Work in batches if necessary to avoid overcrowding the pan.

Drain and Serve: Transfer the cooked patties to a plate lined with paper towels to drain excess oil. Serve warm with dipping sauces, on buns as chicken sliders, or alongside a salad.