Preheat oven to 200°C fan forced
Place pumpkin, cauliflower and broccoli on a large tray. Drizzle with olive oil, season with salt, pepper, smoked paprika and cumin. Toss well to coat evenly
Spread out in a single layer and roast for 30 to 40 minutes, turning once, until golden and tender with crispy edges
While vegetables are roasting, combine lemon juice, zest, olive oil, honey, garlic, salt and pepper in a small bowl and whisk until combined
Remove vegetables from oven and allow to cool slightly. Transfer to a large serving bowl and drizzle over the lemon dressing while still warm
Gently toss to coat. Finish with fresh herbs and optional toppings if using