Kofte Kebabs With Harissa Yogurt Sauce and Grilled Flatbread

Ingredients

• strained yogurt
• tablespoons harissa
• medium cloves garlic, minced on a microplane grater
• fresh mint or parsley leaves , minced
• Kosher salt and freshly ground black pepper
• pounds ground lamb or beef, at least 20% fat
• tablespoon red chili flakes
• teaspoons ground cumin
• teaspoon ground coriander
• teaspoon ground cinnamon
• knob of ginger, grated on the medium holes of a box grater
• small onion, grated on the medium holes of a box grater
• Thinly sliced red onions, soaked in cold water
• lemon, cut into wedges for serving
• A handful of greens, such as arugula
• recipe grilled naan , or store-bought flatbread warmed on grill