Whisk together the Greek seasoning blend in a small bowl.
Add ground lamb to a large bowl along with the onion, breadcrumbs, cilantro, garlic, and Greek seasonings. Mix by hand until well combined. Divide the meat into 8 equal portions and shape each one into a 4-5 inch long by 1-inch wide cylinder. (If grilling, you will want to do this on wooden skewers.)
Stovetop: Drizzle a few teaspoons of oil into a large stainless steel or cast-iron skillet over medium high heat. Add 4 koftas and cook for 7-8 minutes in total, turning them over so they brown on all sides. Repeat with remaining koftas.Air Fryer: Place the koftas evenly spaced in a single layer in the bottom of a 6-quart Air Fryer basket. Cook at 400 degrees for 7-8 minutes, shaking the basket halfway through.Grill: Place the lamb mixture onto wooden skewers. Cook koftas over medium high heat for 7-8 minutes, turning them as you cook so they brown evenly.You’ll know the koftas are done cooking when the internal temperature reaches 160 degrees.
Serve lamb koftas with a sprinkle of fresh cilantro or parsley and a side of tzatziki sauce.
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Notes
Prep-Ahead: You can form and shape these kabobs up to 24 hours in advance. Store in the refrigerator until ready to cook.
Storage: Keep leftover cooked lamb koftas in an airtight container for up to 3-4 days in the fridge. Place in an airtight freezer-safe container and store for up to 3-4 months in the freezer. Do not freeze the yogurt based dip.
Reheating: Warm them in a skillet, the microwave, or an air fryer at 350° until heated throughout.