Note: If you can't find a specific Milanesa meat and you have a thicker steaks like a breakfast steak, follow these steps: Put the steak between two sheets of plastic wrap. Use a flat meat mallet to pound it to 1/8 inch thick. Repeat with remaining meat.
To begin, season the Milanesa steaks with salt and pepper
Into a large shallow bowl, add the flour.
Into a large shallow bowl, crack 3 eggs, add ½ cup milk and beat with a fork until mixed well.
In a another shallow bowl, add the breadcrumbs and season with salt and black pepper.
Dredge one piece of milanesa steak in flour, coating lightly on all sides. Then put it into the eggs, coating it fully. TIP! Use a thong to handle the meat in the egg mixture to prevent your fingers from getting all messy.
Place it onto the breadcrumb mixture. Use your fingers to mound breadcrumbs on top of the meat then press down to adhere crumbs to the meat. Flip and repeat. Place meat on a large plate. Repeat with the rest of the meat pieces.
In a large skillet add enough oil to cover the bottom completely by about ⅛ inch. Heat skillet over medium until very hot shimmering.
Add two milanesa steaks in a single layer and cook until brown, about 1-2 minutes. Flip and brown on the other side. Transfer to a paper plate lined with paper towels. Repeat this cooking step with the rest of the beef.
Serve immediately while warm.