01 - Set oven to 400°F and line a baking sheet with parchment paper.
02 - Pat chicken breasts with paper towels until dry; season both sides with salt and pepper.
03 - Prepare three shallow bowls: one with flour, one with eggs and milk beaten together, and one with a mixture of panko, Pecorino, lemon zest, and parsley.
04 - Dredge each chicken breast in flour, shake off excess, dip in the egg mixture, then fully coat with the pecorino-panko mixture.
05 - Transfer coated chicken to prepared sheet and drizzle or lightly spray with olive oil; bake for 20 to 25 minutes, until golden brown and internal temperature reaches 165°F.
06 - While chicken is baking, melt butter in a saucepan over medium heat. Add garlic and saute 1 minute until fragrant.
07 - Add heavy cream and chicken broth, bring to a gentle simmer.
08 - Add lemon juice, salt, pepper, Pecorino, and lemon zest. Simmer for 3 to 4 minutes, stirring often, until slightly thickened. Remove from heat and adjust seasoning as needed.
09 - Place crisp chicken breasts on serving plates, spoon lemon sauce over each and finish with parsley.