Preheat your oven to 425°F. Line a baking sheet with parchment paper. Toss your florets with 3 tbs of the oil, onion powder, garlic powder, cumin, salt and pepper to taste. Spread them out and roast for 30 minutes or until they turn golden brown with brown edges.
In a food processor add your slightly cooled roasted cauliflower, crumbled feta, yogurt, garlic, 1 tbs oil, lemon juice and salt and pepper to taste. Process until smooth, fluffy and creamy. Top with olives, drizzle of olive oil, chives and chili pepper flakes.
Notes
Serve with crostini or pita chips OR carrot and celery sticks.