Place bread into a food processor and blend into bread crumbs. Place bread crumbs into a large bowl and set aside.

Next, place onion, carrots, celery, and garlic into a food processor and process until finely diced.

Place vegetable mixture into a bowl with bread crumbs.

Next add ground beef, egg, and salt and pepper to the bowl. Mix until well combined.

Let the mixture set in the refrigerator for about 20 minutes.

Place the mixture on top of a parchment covered baking sheet and form into a loaf. See the writeup above for instructions for forming the mixture.

Place in oven and bake for 40 minutes at 375 degrees F

After 20 minutes place the topping on top of the meatloaf.

Bake for an additional 20 minutes or until thermometer reads 165 degrees F