01 - Preheat your oven to 425°F. Line a large baking sheet with parchment paper.
02 - Remove any damaged outer leaves from the cabbage. Slice the cabbage from top to stem into 1-inch thick steaks.
03 - Arrange the cabbage steaks in a single layer on the prepared baking sheet, ensuring they don't overlap.
04 - Brush both sides of each cabbage steak generously with olive oil using a pastry brush.
05 - Sprinkle the steaks evenly with kosher salt, black pepper, garlic powder, and smoked paprika, coating both sides.
06 - Roast for 25 to 30 minutes, flipping the cabbage steaks halfway through cooking, until golden brown and crispy on the edges while remaining tender inside.
07 - Transfer to a serving platter. Garnish with chopped fresh parsley and serve with lemon wedges on the side.