For the meatloaf cakes: Heat oven to 350ºF. In a large mixing bowl, combine the ground beef, crumbled bread or breadcrumbs, egg, onion, lemon juice and seasoned salt. Mix lightly but thoroughly and shape into six small loaves. Space evenly on a baking sheet and bake for 15 minutes; meanwhile, prepare the sauce.
In a small bowl, mix together the ketchup, brown sugar, mustard, cloves and allspice. When the meatloaf cakes have baked for 15 minutes, brush each loaf with sauce and return to the oven. Continue to bake until the meatloaf cakes read 165ºF in the center when tested with an instant-read thermometer, about 20 more minutes. If desired, serve with scalloped potatoes and steamed vegetables. Pass additional sauce separately.