Combine the lamb, bulgur, and parsley, half of the onion, one-third of the garlic, the egg, cumin, ½ teaspoon of the salt, and ⅛ teaspoon of the pepper in a bowl. Knead the mixture well, then cover and refrigerate for 30 minutes.
Shape the meat mixture into 20 meatballs. Set aside.
In a large pot or roasting pan, combine the oil, remaining onion and garlic, tomatoes, tomato sauce, water, cinnamon stick, the remaining ½ teaspoon salt and ⅛ teaspoon pepper.
Add the meatballs, cover and cook in the Sun Oven until the sauce thickens and the meatballs are cooked, 1 ½ to 2 hours.
Remove cinnamon stick. Serve over pasta or with crusty bread.Makes 8 main course or 10 appetizer servings