In a small bowl, mix sauce for bottom well.
Spray a 1 1/2 qt. baking dish. Pour sauce onto bottom.
In large bowl, gently but thoroughly, mix meatloaf ingredients until well incorporated but do not over mix. Shape into a loaf and place into prepared casserole dish. Reshape as needed smoothing top and sides of any cracks. Sprinkle top with more pepper.
Bake in a 350º oven for 45-50 minutes.
Remove, mix topping in a small bowl until creamy, spread whole exposed top with topping, bake for 15-20 minutes longer.
Let rest for 15 minutes. Remove from casserole dish using 2 large spatulas before slicing.
If your meatloaf is shaped with a tall dome, go by the longer times and make sure it is done in the middle before serving.