Preheat your oven to 425°F (220°C).
Remove the leaves from the cauliflower and trim the stem.
Slice the cauliflower into 1-inch thick steaks.
Brush both sides of the steaks with olive oil.
Season with salt, pepper, garlic powder, and smoked paprika.
Place the steaks on a baking sheet lined with parchment paper.
Roast in the oven for 20-25 minutes, flipping halfway through.
Check for a golden brown color and tender texture.
Remove from the oven and drizzle with lemon juice, if desired.
Serve hot, garnished with fresh herbs.