Preheat your oven to 375°F (190°C).
In a mixing bowl, combine melted butter, lemon juice, lemon zest, minced garlic, oregano, thyme, salt, black pepper, and red pepper flakes. Whisk until well combined.
Place the chicken thighs in a 9x13 inch baking dish. Pour the lemon butter mixture over the chicken, ensuring each piece is well coated.
Bake in the preheated oven for 30-35 minutes, or until the chicken is cooked through and reaches an internal temperature of 165°F (75°C).
For a golden finish, broil the chicken on high for an additional 2-3 minutes.
Remove from the oven and let it rest for 5 minutes. Garnish with chopped fresh parsley before serving.