01 - Preheat oven to 400°F. In a large bowl, toss cauliflower florets with olive oil, salt, and black pepper until thoroughly coated.
02 - Arrange the coated florets on a baking sheet in a single layer. Roast for 25 to 30 minutes, turning florets halfway through, until they are golden brown and crisp at the edges.
03 - In a small bowl, whisk together gochujang, soy sauce, sesame oil, honey or maple syrup, rice vinegar, minced garlic, and grated fresh ginger until smooth.
04 - Transfer the sauce to a small saucepan and heat over medium for 3 to 5 minutes, stirring regularly until slightly thickened.
05 - Drizzle the warm sauce over the roasted cauliflower and toss gently to coat all pieces evenly. For enhanced caramelization, return to oven and bake an additional 5 minutes if preferred.
06 - Sprinkle toasted sesame seeds and sliced green onions over the coated cauliflower. Serve immediately as a side, appetizer, or mains accompanied by rice or noodles.