In a large bowl, combine ground beef with finely chopped parsley, and season with cumin, garlic powder, salt, and pepper. Mix well until all ingredients are incorporated.

Take a thick pita bread and cut it in half to create two pockets. Stuff one pocket with the beef mixture and press it down gently.

Preheat your grill or grill pan over medium heat. Place the stuffed pitas on the grill, cooking for about 7 minutes on each side until golden brown and crispy.

Use a meat thermometer to ensure the internal temperature of the filling reaches at least 160°F for food safety.

Remove the Lebanese Arayes from the grill, let them rest for a minute, and cut each pita in half for easy serving.