In a large bowl add 2 lbs. ground lamb, mint, sumac, salt, black pepper, onion powder, and garlic powder. Refrigerate for two hours.
Using a large stainless steel saute pan, bring up to heat.
Remove lamb mixture from refrigerator and roll 12 medium-size meatballs.
Once the pan has a light smoke, gently add meatballs six at a time and sear. Two minutes each side. Remove from pan and set aside. Repeat with last six.
In a separate bowl add arugula, jicama, lemon juice, chives, tarragon, and red radishes.
Add olive oil, salt and gently toss until completely coated.
Arrange salad on a plate and place three meatballs on top.
Serve Immediately.