Combine panko, milk, pecorino, Worcestershire sauce, pepper, salt, eggs, pasilla chiles and Italian parsley in a large mixing bowl and mix well. Add the ground beef and hand-mix until well blended. Set aside.
To make the glaze, combine ketchup, brown sugar, dry mustard and hot sauce in a small mixing bowl. Stir well using a rubber spatula. Set aside.
Lay bacon down slightly overlapping side-by-side in a half-sheet pan. Spray a 9-by-4-inch loaf pan that's 6 inches high with nonstick spray. Place the beef mixture in the pan and pat down to form a meatloaf. Turn pan over and tap out the meatloaf into your hand. Place the meatloaf over the center of the bacon slices. Working with one slice at a time, fold ends of each bacon slice over the top of the meatloaf. Turn loaf over and place on a rack set in a baking sheet to allow the fat to drain while baking.
Using the rubber spatula, spread half the glaze over the meatloaf. Bake for 1 hour, then apply remaining glaze. Continue to bake until the internal temperature reaches 165 degrees F, about another 20 minutes.
This recipe was provided by a chef, restaurant or culinary professional. It has not been tested for home use.