Preheat the oven to 400°F. Line a rimmed baking sheet with parchment paper or a silicone mat.
In a small bowl, whisk together the salt, pepper, and spices. Brush each slice of cabbage front and back with olive oil, and sprinkle generously with spice mixture.
Bake on the prepared baking sheet for 25 minutes, or until browned and tender. Serve immediately.