Preheat oven to 375°F. Heat oil in medium skillet on medium heat. Add onions; cook and stir 5 minutes or until softened and golden brown. Set aside and cool slightly.
Mix onions, ground beef, bread crumbs, egg and Seasoning in large bowl. Shape into 4 mini loaves and place on shallow baking pan. Pour ketchup over meat loaves.
Bake 25 to 30 minutes or until cooked through.