Begin by preheating your oven to 350F. Now examine your cutlets. You want them to be around ¼" thick. If they are not, then use a meat mallet to pound them down to this thickness. The meat mallet also helps to tenderize the veal, and can also be used on your cutlets even if you have purchased them at ¼" thick size. To use the meat mallet, place cutlets between two sheets of plastic wrap and pound. Then season your meat with ¼ ts salt and ¼ ts pepper.
Create your breading station. Fill one shallow bowl with your Italian seasoned bread crumbs, one with the flour, and another bowl with whisked or beaten egg. Add ¼ ts salt and ¼ ts pepper to the flour and mix to make a seasoned flour.
First dredge the cutlets in the seasoned flour. Then dip the cutlets in the beaten egg, allowing the excess to run off. Lastly, coat the cutlet swith the Italian seasoned breadcrumb mixture.
Heat up 3 tablespoons of olive oil in a large skillet (preferably cast iron) on medium-high heat. Once the oil is hot, add the breaded veal cutlets, and cook each side until they are golden brown. This should take around 2-3 minutes for each side. Add additional olive oil if needed if the skillet gets too dry. Don't crowd the skillet, and cook only the amount of cutlets that will comfortably fit in the pan. You may have to cook in batches. Once the cutlets are browned, remove them to a separate plate. Then remove any brown bits remaining in the skillet using paper towels (take care as the skillet is hot).
Heat the remaining 1 tablespoon of olive oil in the skillet on a medium heat. Then add minced garlic and onion, and cook for around 3-4 minutes or until the onion is softened. The add the tomato sauce, Italian seasoning, and the remaining ¼ ts of salt and ¼ ts of pepper. Stir to combine, and cook over the medium heat for 2 minutes. Add more tomato sauce if you feel this sauce is too thick.
Place the cooked veal cutlets in a large baking tray. Top each one with an even layer of tomato sauce mixture.
Add the thin slices of mozzarella cheese on top of the cutlets and tomato sauce. Follow that by sprinkling freshly grated Parmesan cheese on top of the mozzarella.
The final step is to bake in your oven at 350F for around 15-20 minutes. At this point your dish should be heated through and your cheese will have melted and become a gorgeous golden brown!
Garnish with some Italian parsley, then your elegant and delicious dish is now ready to serve and enjoy!