01 - Preheat oven to 400°F. Line a baking sheet with parchment paper.
02 - Pat chicken breasts dry and season both sides with salt and freshly ground black pepper.
03 - Arrange three shallow bowls: one with all-purpose flour, one with eggs beaten with milk, and one with panko, Pecorino Romano, lemon zest, and parsley mixed together.
04 - Coat each chicken breast in flour, shake off excess, dip into the egg mixture, then press into the pecorino-panko mixture to coat thoroughly.
05 - Place the breaded chicken onto the prepared baking sheet. Drizzle or spray lightly with olive oil.
06 - Bake the chicken for 20 to 25 minutes, until golden brown and fully cooked. Internal temperature should reach 165°F.
07 - While the chicken bakes, melt butter in a saucepan over medium heat. Add minced garlic and sauté for 1 minute until fragrant.
08 - Stir in heavy cream and chicken broth. Bring mixture to a gentle simmer.
09 - Add lemon juice, salt, pepper, Pecorino Romano, and lemon zest. Simmer for 3 to 4 minutes, stirring, until slightly thickened.
10 - Taste the sauce and adjust seasoning as needed. Remove from heat.
11 - Arrange chicken on plates, drizzle with lemon sauce, and garnish with chopped parsley.