Place bread crumbs, flour, Parmesan cheese and garlic in a large resealable plastic bag. Seal and shake to combine.
In a large bowl, beat egg and milk. Dip chicken in egg mixture. Let excess drip back into bowl, then place in bag with crumbs.
Shake two pieces of chicken at a time in bag until coated. Remove from bag and place on a plate. Repeat with remaining chicken until all pieces are coated.
Spray a 13×9-inch baking pan with nonstick cooking spray; set aside.
In a large skillet heat olive oil over medium-high heat. Cook chicken a few pieces at a time until golden brown, turning once, about 4 minutes. Place cooked chicken in baking pan.
Heat Broiler on HIGH.
Spoon marinara sauce over chicken pieces. Top with Mozzarella cheese slices.
Broil 5 minutes or until cheese is melted.
Sprinkle with Parmesan cheese and sprinkle with parsley.
Recipe Notes
Serve Chicken Parmesan over your favorite pasta or on a sub roll.