In a 3 qt crock pot, combine garlic, onion, carrot, herbs, tomatoes, tomato paste, and lemon zest.
Heat oil in a skillet over medium heat until shimmering. Season the flour with salt and pepper. Dredge the veal on all sides in the flour, then brown in the hot oil. When browned on all sides, transfer the meat and any remaining oil to the crock pot. Deglaze the skillet with the wine (add the wine and scrape up any browned bits that have stuck to the pan), then add the wine to the crock pot.
Cover and cook on low 6-8 hours. Adjust seasoning to taste.
Combine gremolata ingredients. Stir well and sprinkle on top of veal before serving.