Serve these hearty, oversize meatballs with homemade marinara sauce or add them atop your favorite pasta for a traditional family-friendly meal.
Place bread in a bowl and cover with milk. In another bowl, mix veal and pork. Add onion, garlic, lemon zest, Parmigiano-Reggiano, and parsley. Add salt and pepper. Mash bread mixture to form a paste and add to meat mixture. Mix together, adding egg, and combine well. Cover with plastic wrap and chill for 1 hour.
Preheat oven to 350 degrees. Divide mixture in half and form into two equal balls. Heat oil in a large ovenproof skillet over medium heat. Saute meatballs until brown, a few minutes on each side. Place in oven to finish cooking, 25 to 30 minutes. Serve immediately.