Preheat the oven to 420F / 220C
On a baking pan with parchment paper put the sliced cabbage.
Add the seasoning and mix it well with your hands.
Spread the cabbage evenly on the baking sheet.
Bake it in the oven on 420F for 25 minutes.
Transfer to convection broil on 450F for 7-8 minutes until the cabbage is golden and crisp.
Put the roasted cabbage in a nice bowl.
Pour the dressing on top and garnish with sumac.
