Pat ground lamb dry with paper towel.
To a large mixing bowl, add lamb, eggs, ½ cup parsley, 2 tsp kosher salt and 1 tsp black pepper. Using your hands, mix until just combined. Avoid over-mixing the meat or it will toughen. Form mixture into golf-ball sized meatballs and lay on a tray or sheet pan lined with plastic wrap or parchment. Tips: use an ice cream scoop to achieve equal size meatballs; wet your hands slightly to prevent the meat from sticking to your skin.
Fill a 4qt stock pot with water and bring to a boil. Add the onion, bell pepper, carrot, potato and bay leaves. Season with 1 tbsp kosher salt and 1 tsp freshly cracked black pepper. Reduce heat to a steady simmer and cook until potatoes are slightly fork tender (approximately 18-20min)
Add meatballs one at a time and boil until meat is cooked through (approximately 18-20min), skimming any foam that rises to the surface.
Add tomato, parsley, dried lovage and lemon juice and cook additional 5-6 minutes. Taste for seasoning and adjust salt, pepper and acid as necessary. Typically a generous amount of salt is required.
Serve in a bowl with raw, spicy pepper of choice.