01 - Preheat the oven to 400°F (204°C). Line a baking sheet with parchment paper.
02 - Pat chicken breasts dry and season both sides with salt and freshly ground black pepper.
03 - Prepare three shallow bowls: one with flour, one with beaten eggs and milk, and one with panko, pecorino, lemon zest, and chopped parsley.
04 - Dredge each chicken breast first in flour, shake off excess, dip in the egg mixture, then coat thoroughly in the pecorino-panko mixture.
05 - Place coated chicken breasts on the lined baking sheet. Drizzle or spray lightly with olive oil.
06 - Bake for 20 to 25 minutes until the crust is golden brown and internal temperature reaches 165°F (74°C).
07 - While chicken bakes, melt butter in a saucepan over medium heat. Add minced garlic and sauté until fragrant, about 1 minute.
08 - Stir in heavy cream and chicken broth; bring to a gentle simmer.
09 - Add lemon juice, salt, pepper, Pecorino Romano, and lemon zest. Stir and simmer 3–4 minutes until slightly thickened.
10 - Adjust seasoning as needed, remove sauce from heat. Serve chicken topped with sauce and garnish with additional parsley.