01 - Preheat oven to 425°F. Line large baking sheet with parchment paper.
02 - In large bowl, whisk together olive oil, turmeric, cumin, smoked paprika, salt, and black pepper until well combined.
03 - Add cauliflower florets to bowl and toss thoroughly until evenly coated with spice mixture.
04 - Spread cauliflower in single layer on prepared baking sheet, ensuring pieces do not overlap.
05 - Roast 25 to 30 minutes, tossing halfway through cooking, until florets are golden brown and crisp-tender.
06 - Remove from oven, drizzle with lemon juice, and toss gently.
07 - Transfer to serving platter and sprinkle with fresh cilantro and toasted sesame seeds.