Preheat your oven to 400°F (200°C).

Remove the outer leaves of the cabbage and slice it into ¾-inch thick steaks.

In a small bowl, combine olive oil, garlic powder, smoked paprika, onion powder, thyme, salt, and black pepper. Whisk until well-blended.

Use a brush or your hands to apply the oil mixture to both sides of each cabbage steak.

Arrange the seasoned cabbage steaks on a baking sheet in a single layer.

Roast the cabbage steaks in the oven for 25-30 minutes, flipping halfway through.

Let the cabbage steaks cool for a few minutes before serving. Garnish with fresh herbs or a drizzle of lemon juice if desired.