Baking koobideh kabob in the oven is a convenient option if you don't have access to a grill. However, the kabobs may not have the same smoky and charred flavor as when grilled, but they are still delicious. To enhance the smokiness, consider adding a few splashes of liquid smoke to the beef and onion mixture. 1. Preheat the oven to 375℉ (190℃). Line a rimmed baking sheet with foil and prepare it with cooking spray; add the kabobs to the sheet.  2. Bake for 15-20 minutes. If you prefer, turn on the broiler for the last few minutes of cooking to get a crispy and charred exterior.