To make garlic confit (if not using roasted garlic): Add ⅓–½ cup garlic cloves to a small ramekin, cover with olive oil, and bake at 275°F (135°C) for 2 hours. Let cool.
In a food processor, blend garlic confit (just the garlic), feta, Greek yogurt, mayo, vinegar, water, salt, and pepper until smooth. Adjust thickness with more water if desired.
In a mixing bowl, combine chopped broccoli, diced chicken, and strained onion.
Add desired amount of garlic feta sauce and toss until well coated.
Top with more crumbled feta, chili flakes, or your favorite garnish.
