These North African-inspired cauliflower burgers are bursting with complex flavor, and we love the contrast between their creamy, nutty interiors and crunchy, well-browned exteriors. We found the trick was to first roast the cauliflower, which takes less than 30 minutes; this intensified its flavor and made it easy to mash the florets. Before roasting, we tossed the florets with oil, cumin, and paprika.