01 - Place chicken breasts between two pieces of plastic wrap and pound to ½-inch thickness using a meat mallet. Season both sides generously with salt and freshly ground black pepper.
02 - Arrange three shallow bowls: the first with all-purpose flour, the second with eggs beaten together with 2 tablespoons of water, and the third with Romano cheese thoroughly combined with breadcrumbs.
03 - Dredge each chicken breast in flour, shaking off any excess. Dip into the egg wash, allowing extra to drip off. Press firmly into the Romano-cheese and breadcrumb mixture, ensuring an even, adherent coating on all sides.
04 - Heat olive oil and 2 tablespoons of butter in a large skillet over medium heat. Carefully add the breaded chicken cutlets, working in batches if needed. Cook 3 to 4 minutes per side until deeply golden and cooked through to an internal temperature of 165°F. Transfer to a plate and tent loosely with foil.
05 - Pour off excess oil from the skillet. Add the fresh lemon juice and lemon zest to deglaze, scraping up all browned bits from the bottom. Stir in the remaining 2 tablespoons of butter and simmer for 1 to 2 minutes until the sauce lightly thickens and becomes glossy.
06 - Return the chicken cutlets to the skillet and spoon the lemon butter sauce over each piece. Cook for 1 to 2 minutes to heat through. Sprinkle with chopped fresh parsley and serve immediately with extra lemon slices alongside.