Bread the Chicken:
Set up three shallow dishes Place flour in the first dish beaten egg in the second dish and mix Italian breadcrumbs with grated Parmesan in the third Dredge the chicken first in flour shaking off extra Then dip into the egg coating evenly and finally coat in the breadcrumb and Parmesan mixture Press gently so the crumbs adhere well
Cook the Chicken:
Pour olive oil into a skillet and heat over medium-high Once hot add your breaded chicken Cook for four to five minutes per side Let it turn deep golden brown on the outside but be sure the interior hits a safe temperature It should be juicy not dry Let rest to lock in the juices
Assemble the Sandwiches:
Spread a thin layer of marinara on one side of each bread slice Place slices of rested chicken over half the bread Top with more marinara mozzarella cheese and Parmesan cheese Place the remaining bread slices on top marinara side down for easy sandwich assembly
Grill the Sandwiches:
Spread softened butter on the outside of each sandwich Heat a clean skillet or griddle over medium Place sandwiches on the skillet Press gently if you like extra crispiness Grill three to four minutes per side until the outside is golden brown and the cheese inside is lush and melted
Serve:
Remove grilled sandwiches from the skillet Let rest briefly before cutting This helps the cheese stay inside Serve with a bit of extra warmed marinara for dipping if desired
