Preheat oven to 425°F (220°C).
In a small bowl, whisk together olive oil, maple syrup, Sriracha, soy sauce, garlic powder, and smoked paprika.
Toss the cauliflower florets in the sauce mixture, ensuring each piece is evenly coated.
Spread the cauliflower on a lined baking sheet in a single layer.
Roast in the preheated oven for 25-30 minutes, turning halfway through, until golden and crispy.
Season with salt and pepper to taste, then garnish with chopped cilantro and sesame seeds if desired.