Prepare the wet batter by whisking together the egg, Italian seasoning, grated parmesan, salt, and black pepper in a small bowl.
In a separate bowl, combine plain breadcrumbs, Panko breadcrumbs, grated parmesan, Italian seasoning, oregano, dried parsley, salt, and black pepper.
Dip each chicken breast half into the wet batter, letting any excess drip off, then coat it well in the dry breadcrumb mixture. Repeat for all chicken pieces and let them rest for 10 minutes.
Heat vegetable oil in a frying pan. We'll be shallow frying, so you don't need too much oil.
Once the oil is hot, fry the chicken on each side until golden and cooked through. Fry in batches to avoid overcrowding the pan. Transfer the cooked chicken to a wire rack to drain excess oil.