Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.

Remove wilted outer leaves from the cabbage and slice into ¾-inch thick rounds, keeping the core intact.

In a mixing bowl, combine olive oil, garlic powder, smoked paprika, onion powder, thyme, salt, and black pepper; whisk until blended.

Coat both sides of each cabbage steak with the flavor mixture, ensuring even coverage.

Arrange the cabbage steaks on the baking sheet, leaving space between each for air circulation, and roast for 25-30 minutes.

Flip each cabbage steak halfway through to ensure even cooking until edges are golden brown and crispy.

Serve warm, optionally garnished with Parmesan cheese or red pepper flakes.