Preheat your oven to 425°F / 220°C. Line a couple of baking sheets with parchment paper.
Using a very sharp knife, slice the stem from the bottom of the cauliflower so you are working with a flat surface, and remove any outer leaves.
1 large cauliflower
Place the cauliflower onto your cutting board, and slice into "steaks" from the top down into 1 or 1 ½ inch thick slices.
Arrange the cauliflower steaks on the prepared baking sheets, ensuring they are not not crowded.
Whisk together the olive oil, salt, cumin, paprika, garlic powder, and black pepper.
¼ cup extra virgin olive oil, 1 teaspoon fine-grain sea salt, ½ teaspoon ground cumin, ½ teaspoon smoked paprika, ¼ teaspoon garlic powder, ¼ teaspoon freshly cracked black pepper
Liberally brush the cauliflower steaks with the oil mixture on both sides.
Place into the hot oven and roast, for 30-35 minutes, carefully flipping them over at the 20 minute mark.
Carefully remove from the pan and serve, with a squeeze of lemon juice and a sprinkling of fresh parsley over top.
2 Tablespoons fresh parsley , 1 lemon