Preheat oven to 350.
Soak break crumbs in milk.
Add meat, eggs, onions, and seasoning, mix.
Form 1 loaf and place in greased loaf pan.
Combine the brown sugar, ketchup, nutmeg, and dry mustard, stir until combined.
Spread the meatloaf with sauce.
Bake 1 1/2 hours.