01 - Preheat the oven to 425°F and line a baking sheet with parchment paper.
02 - Place the cauliflower head into a large pot of salted boiling water and simmer for 7 to 8 minutes until slightly tender. Drain and pat dry.
03 - Transfer the cauliflower to the prepared baking sheet. Rub evenly with olive oil, then sprinkle with cumin, smoked paprika, kosher salt, and black pepper.
04 - Roast the cauliflower for 40 to 45 minutes, turning halfway through, until it is golden brown and tender when pierced with a knife.
05 - While roasting, whisk tahini, lemon juice, maple syrup, grated garlic, and salt together in a small bowl. Gradually add warm water until the glaze reaches a smooth, pourable consistency.
06 - Transfer the roasted cauliflower to a serving platter, drizzle generously with the tahini glaze, and garnish with chopped parsley, pomegranate seeds, and toasted nuts if desired. Slice into wedges to serve.