Roasted cauliflower, chickpeas, and harissa

I had some cauliflower that I wanted to try roast. In my internet searching, I found this recipe for Roasted cauliflower, chickpeas, and harissa. I was super excited when I found this recipe, but it was just ok. It might have been because the cauliflower head was huge and didn't roast right. I think I'll keep trying to find "that" roasted cauliflower recipe.