Drain feta and crumble into small pieces.
Place feta, yogurt, olive oil, lemon juice, zest, and garlic in a food processor.
Blend on high for 2–3 minutes, scraping the sides as needed, until silky smooth.
Taste and add black pepper if desired (salt usually isn't needed).
Transfer to a serving bowl and use a spoon to create swirls on the surface.
Drizzle with honey and a bit more olive oil.
Top with crushed pistachios, fresh herbs, and red pepper flakes.
Serve immediately with pita or vegetables.