01 - Preheat the oven to 425°F. Line a large baking sheet with parchment paper.
02 - In a large bowl, combine olive oil, turmeric, cumin, smoked paprika, salt, and black pepper. Whisk until well blended.
03 - Add the cauliflower florets to the bowl. Toss thoroughly until evenly coated with the spice mixture.
04 - Spread the cauliflower evenly on the prepared baking sheet in a single layer, ensuring pieces are not overcrowded.
05 - Roast for 25-30 minutes, tossing halfway through cooking, until golden brown and crisp-tender.
06 - Remove from the oven and drizzle with fresh lemon juice, tossing gently to distribute.
07 - Transfer to a serving platter. Sprinkle with chopped fresh cilantro and toasted sesame seeds if desired. Serve warm.