Slice chicken breasts into even 1-inch thick cutlets to ensure uniform cooking.
In a medium bowl, whisk together lemon juice, lemon zest, minced garlic, oregano, salt, pepper, and 1 tablespoon of olive oil.
Place chicken in a resealable bag or shallow dish, coat with the marinade, and refrigerate for 30 minutes.
Heat the remaining 1 tablespoon of olive oil in a large skillet over medium-high heat.
Place chicken in the skillet and sear for 5 to 7 minutes per side until the internal temperature reaches 165°F (74°C).
Transfer chicken to a plate and let rest for 5 minutes before slicing for meal prep storage.