Preheat the oven to 400°F (200°C) In a shallow bowl, mix together the Italian breadcrumbs and Parmesan cheese.
In a separate shallow bowl, beat the egg.
Pat the pork chops dry with a paper towel. Dip each chop into the beaten egg, then coat it in the breadcrumb and Parmesan mixture, pressing down to ensure the coating sticks well.
Heat 2 tablespoons of olive oil in a large skillet over medium heat. Sear the pork chops for 2-3 minutes on each side until golden brown.
Transfer the pork chops to the prepared baking sheet and bake in the oven for about 10-12 minutes, until they are cooked through (145°F internal temperature).
Make the Mushroom Gravy:
In the same skillet, add the mushrooms and cook for 4-5 minutes until they release their moisture and start to brown. Stir in the garlic and cook for 1-2 minutes.
Deglaze the pan with beef broth, then stir in heavy cream and Dijon mustard. Let the gravy simmer for 3-4 minutes, allowing it to thicken slightly.
Add the Parmesan cheese and salt and pepper.
Return the pork chops to the skillet, spooning the gravy over them, and let them simmer in the sauce for 5 minutes to soak up the flavor.