Preheat oven to 200℃. On a baking sheet, add the cauliflower florets, olive oil, salt, paprika, and cumin. Toss well to evenly coat.
Transfer to the oven and roast for around 15 minutes. Toss and roast another 10 minutes, until brown and outside starting to become soft. Leave to cool
Place the drained white beans, harissa paste, salt, smoked paprika, cumin, garlic cloves and lemon juice in food processor. Blend until smooth. Spread the dip in a shallow bowl. Add the roasted cauliflower.
Add optional toppings: Fresh coriander, Fresh dill, Pine nuts, Black sesame seeds, Chilli oil