01 - Whisk together olive oil, lemon juice, minced garlic, dried oregano, paprika, salt, and black pepper in a bowl until well combined.
02 - Place chicken breasts in a resealable bag or shallow dish. Pour marinade over chicken, seal tightly, and refrigerate for at least 30 minutes, up to 2 hours for optimal flavor absorption.
03 - Heat grill to medium-high temperature (approximately 400°F) and lightly oil the grates to prevent sticking.
04 - Remove chicken from marinade, allowing excess to drip off. Grill for 6-7 minutes per side until internal temperature reaches 165°F and juices run clear when pierced.
05 - Transfer grilled chicken to a cutting board or platter and let rest for 5 minutes before slicing to retain juices.
06 - Sprinkle with chopped fresh parsley and accompany with lemon wedges if desired.