01 - Preheat oven to 425°F. Line a large baking sheet with parchment paper.
02 - Remove any damaged outer leaves from the cabbage. Slice from top to stem into 1-inch thick steaks.
03 - Place cabbage steaks in a single layer on the prepared baking sheet.
04 - Brush both sides of each cabbage steak evenly with olive oil.
05 - Sprinkle salt, pepper, garlic powder, and smoked paprika evenly over both sides of the steaks.
06 - Roast for 25-30 minutes, flipping halfway through, until golden brown and crispy on edges with tender interiors.
07 - Transfer to serving platter. Top with fresh parsley and lemon wedges if desired.