Preheat oven to 400°F (200°C). Remove any outer leaves of the cabbage that are damaged or wilted.

Place the cabbage on its stem end and, using a large, sharp knife, cut downward through the core to create approximately 1-inch thick "steaks."

In a small bowl, combine 2 tablespoons of olive oil, minced garlic, Parmesan cheese, Italian herbs, salt, pepper, and red pepper flakes (if using). Mix well.

Brush both sides of each cabbage steak with the remaining 2 tablespoons of olive oil.

Generously spread the garlic Parmesan mixture over the top of each steak.

Skillet Method (Preferred for Crispier Edges): Heat a large, oven-safe skillet (cast iron is ideal) over medium-high heat. Carefully place the cabbage steaks in the hot skillet and sear for 2-3 minutes per side, until nicely browned. Then, transfer the skillet to the preheated oven and bake for 15-20 minutes, or until the cabbage is tender and the Parmesan is melted and golden brown.

Baking Sheet Method (For Easier Cleanup): Line a baking sheet with parchment paper. Place the cabbage steaks on the baking sheet and bake in the preheated oven for 20-25 minutes, or until the cabbage is tender and the Parmesan is melted and golden brown.

Remove the cabbage steaks from the oven (or skillet).

Sprinkle with additional Parmesan cheese, if desired.

Let cool slightly before serving. Serve as a side dish or a light main course.