At Marcie Turney's Indian restaurant, Bindi, she serves raita (a classic yogurt sauce). It's great as a snack on its own or with grilled meat.
In a large, shallow bowl, mix the yogurt, peeled cucumber, mint, cilantro, garlic, lemon zest and cumin and season with salt and black pepper. Scatter the unpeeled cucumber on top. Drizzle with olive oil and sprinkle with cayenne. Serve the flatbreads with the raita.