In a large mixing bowl combine the ground chicken, 1/3 c (half of the) Italian bread crumbs, grated onion, egg, Worcestershire sauce, Dijon mustard, mayo, salt, and pepper. Mix until well combined, but don’t over mix.
Using your hands, shape the mixture into four equal patties.
In a large skillet over medium heat, heat the olive oil.
In a separate bowl, put the remaining 1/3 c of Italian bread crumbs. Gently coat each side, including edges, of each chicken patty in the bread crumbs.
Carefully place the coated chicken patties into the hot oil. Pan fry for 5-6 minutes per side until golden brown and cooked through (165 degrees). Remove from pan and let drain on a paper towel.
Serve on a toasted bun with mayo, lettuce, tomato, and red onion or on a bed of greens with ranch. Or anyway that sounds good to you. Enjoy!