Place chicken breasts between two sheets of heavy plastic (resealable freezer bags work well) on a solid, level surface. Firmly pound chicken with the smooth side of a meat mallet to a thickness of 1/2-inch. Season chicken thoroughly with salt and pepper.
Beat eggs in a shallow bowl and set aside.
Mix bread crumbs and 1/2 cup Parmesan in a separate bowl, set aside.
Place flour in a sifter or strainer; sprinkle over chicken breasts, evenly coating both sides.
Dip flour coated chicken breast in beaten eggs. Transfer breast to breadcrumb mixture, pressing the crumbs into both sides. Repeat for each breast. Set aside breaded chicken breasts for about 15 minutes.
Heat 1 cup olive oil in a large skillet on medium-high heat until it begins to shimmer. Cook chicken until golden, about 2 minutes on each side. The chicken will finish cooking in the oven.
Bake in the preheated oven until chicken breasts are no longer pink in the center, 15 to 20 minutes. An instant-read thermometer inserted into the center should read at least 165 degrees F (74 degrees C).