In a large bowl, mix ground lamb, breadcrumbs, grated onion, garlic, egg, parsley, mint, oregano, cumin, paprika, salt, and pepper. Stir gently until just combined.

Roll the mixture into small meatballs, about 1 inch in size.

Heat olive oil in a skillet over medium heat. Cook the meatballs in batches for 8–10 minutes, turning occasionally, until browned and fully cooked.

For the tzatziki, combine yogurt, grated cucumber, garlic, lemon juice, dill, olive oil, salt, and pepper in a bowl. Mix until smooth and creamy.

Warm the pita breads, then serve with lamb meatballs, generous tzatziki, and fresh vegetables.