01 - Preheat the oven to 425°F. Line a large baking sheet with parchment paper.
02 - In a large bowl, toss the cauliflower florets with 2 tbsp olive oil, sea salt, and black pepper until evenly coated.
03 - Spread the cauliflower in a single layer on the prepared baking sheet. Roast for 25–30 minutes, flipping halfway through, until golden and crisp at the edges.
04 - While the cauliflower roasts, heat a dry skillet over medium heat. Toast the sesame seeds for 2–3 minutes, stirring frequently, until fragrant and lightly golden. Transfer to a bowl and let cool.
05 - Add the parsley, cilantro, mint, minced garlic, lemon zest, red pepper flakes, extra-virgin olive oil, lemon juice, and a pinch of salt to the toasted sesame seeds. Toss well to combine.
06 - Transfer the roasted cauliflower to a serving platter. Spoon the sesame herb crunch generously over the top. Serve warm or at room temperature.