In a medium bowl, combine honey, olive oil, apple cider vinegar, minced garlic, dried oregano, red pepper flakes, salt, and pepper. Whisk until well blended to create a flavorful marinade.
Taste the marinade and adjust seasoning if necessary. Place chicken breasts in a large resealable plastic bag or shallow dish, pour the marinade over them, ensuring each piece is coated, then seal or cover.
Refrigerate the marinating chicken for at least 30 minutes but preferably 2 to 4 hours.
In a small bowl, combine crumbled feta cheese with a drizzle of olive oil along with a pinch of salt and black pepper before mixing gently.
Preheat your oven to 400°F (200°C). Remove chicken from marinade and place in a baking dish.
Spoon the feta mixture evenly over each chicken breast before baking for 25 to 30 minutes or until fully cooked through at an internal temperature of 165°F (75°C). Optionally broil for an additional touch of color, then let rest before garnishing with parsley and serving warm alongside lemon wedges.