In a large bowl, gently mix the ground beef, onion, garlic, tomato, bell pepper, jalapeño, parsley, salt, allspice, paprika, coriander, black pepper, cardamom, cumin, cinnamon, and nutmeg just until combined.
Cover the bowl and refrigerate for at least an hour.
Preheat oven to 400˚ (200˚C).
Carefully cut a small slit on one side of the bread or pita about 2 inches (5 centimeters) wide. Gently add about 1/4-1/3 cup of the meat mixture and press across the top to push the meat into an even layer. Repeat with remaining bread and meat.
Another option is to cut each piece of bread in half and fill each half with the meat mixture.
Brush each side of the filled bread with ghee and arrange on a rimmed baking sheet.
Bake in preheated oven until the meat is cooked through and the bread is golden, about 20-25 minutes.
Cut the bread in halves or quarters and serve with tahini sauce, salad, fries, and/or pickled vegetables.