Preheat oven to 350 degrees F. Line a 9x13 inch casserole dish with tinfoil and set aside.
Combine all the ingredients for the meatloaf in a large bowl and use your hands to thoroughly mix and shape into a meatloaf (about 4 inches x 8 inches) and place in the center of the prepared casserole dish.
Combine all the ingredients for the top sauce and pour over top of the meatloaf.
Bake for one hour. Let cool slightly before topping with green onions (if desired) and slicing.