In a bowl, mix lemon juice, minced garlic, olive oil, oregano, salt, and pepper.
Place chicken breasts in the marinade and let them soak for at least 30 minutes.
Preheat your oven to 375°F (190°C).
Remove chicken from the marinade and place it in a baking dish.
Pour remaining marinade over the chicken.
Bake in the oven for 25 minutes or until cooked through.
Use a meat thermometer to ensure chicken reaches 165°F (75°C).
Let chicken rest for 5 minutes before slicing.
Garnish with fresh parsley before serving.
Serve with your choice of side dishes.