Heat oil in a 6-qt. saucepan over medium-high heat. Season veal with salt and pepper. Add to pan; cook, turning, until browned all over, about 8 minutes. Transfer to a plate; set aside. Add turmeric and onion; cook until softened, about 10 minutes. Add parsley, cilantro, and scallions; cook until dark green, about 8 minutes. Return veal to pan with beans, fenugreek, limes, and 4 cups water; boil. Reduce heat to medium-low; cook until limes have softened, about 10 minutes. Pierce 2 limes with a paring knife; cook, partially covered, until veal is tender, about 1½ hours. Serve with lavash.