Preheat oven to 350 degrees and line a baking sheet with parchment paper or foil.
Place the slice of bread in a small bowl and pour the milk over the top of it. Set aside.
In a large bowl, combine the remaining ingredients. Add in milk soaked bread and mix together with hands until ingredients are incorporated.
Turn mixture out onto prepared baking sheet and shape into loaf form.
Bake meatloaf at 350 degrees for 40 minutes.
Take meatloaf out of the oven and top with marinara. Bake for another 10 minutes or until the internal temperature reaches 155 degrees.
Remove meatloaf from the oven and let rest for 10 minutes before serving.