In a large mixing bowl, mix together all the ingredients for the meatloaf and work together completely by hand until all ingredients are evenly distributed and the mixture is uniform. Place meat mixture into a 9 by 13-inch baking dish and shape into a loaf about 11 inches long and 4 inches wide. It is important to form it like this so that it cooks evenly throughout. The loaf should be in the middle of the pan with room on both sides for the sauce to pool.
Place all ingredients in a blender or food processor and puree until smooth. Cover the meatloaf with the sauce and allow excess sauce to pool around the meatloaf. Cover pan with aluminum foil but avoid contact with meat loaf by leaving at least a couple inches of space between the top of the meatloaf and the foil. Bake for 45 minutes, then uncover and bake 45 minutes longer. Let rest for 15 minutes before cutting and serving.