1. Heat oven to 375 degrees F. In large bowl, mix together meat, onion, instant oatmeal, eggs, ketchup, milk, Worcestershire sauce, and salt until well-combined. Divide meat mixture into 8 servings and shape into individual loaves. Place meat loaves in a 9 x 13-inch baking pan.Prepare glaze:
2. In a small bowl, blend together ketchup and brown sugar. Brush tops and sides of meat loaves; bake 35 to 40 minutes, or until a meat thermometer registers 160 degrees F when inserted into center of loaves. Let cool 10 minutes.
3. Serve 4 meat loaves with mashed potatoes, if desired. Cool remaining meat loaves for 25 minutes. Wrap individually in plastic wrap or waxed paper and freeze.