01 - Preheat oven to 425°F. Line a baking sheet with parchment paper.
02 - In a large bowl, toss cauliflower florets with olive oil, cumin, smoked paprika, turmeric, garlic powder, salt, and black pepper until well coated.
03 - Spread cauliflower in a single layer on the prepared baking sheet. Roast for 25–30 minutes, flipping halfway, until golden and crispy at the edges.
04 - In a small bowl, whisk together tahini, lemon juice, water, turmeric, minced garlic, salt, and maple syrup or honey (if using). Add more water, 1 tsp at a time, to reach a smooth, pourable consistency.
05 - Transfer roasted cauliflower to a serving platter. Drizzle generously with turmeric tahini sauce. Garnish with chopped parsley or cilantro, toasted sesame seeds, and lemon wedges if desired. Serve warm.