Preheat oven to 450°F. Line a medium sheet pan with parchment paper and spray with olive oil.
Remove the stem and leaves from the cauliflower and slice into quarters in a criss-cross pattern.
In a small bowl, mix olive oil, Parmesan cheese, garlic powder, onion powder, paprika, salt, and pepper. Brush this mixture on all sides of the cauliflower wedges except the bottom. Bake covered for 25 minutes, then remove cover and broil until tops are golden brown.
For the dressing, whisk together olive oil, Greek yogurt, lemon juice, minced garlic, Dijon mustard, salt, and pepper. If too thick, add milk one tablespoon at a time until desired consistency is reached. Fold in crumbled feta and chopped dill.
Drizzle the creamy feta dressing over the roasted cauliflower wedges and serve immediately, optionally topped with chili pepper flakes.
Notes
This salad is a flavorful twist on traditional cauliflower, offering a creamy, tangy dressing that's perfect for sharing.