Preheat oven to 350 degrees. Combine all ingredients except tomato sauce(or brown gravy). Mix well.
Shape into loaf in 12x8x1.5 baking pan. Bake for 45 minutes, remove from oven and remove grease drippings from pan. Pour tomato sauce(or brown gravy) over top of loaf and return to oven. Cook for an additional 15 mins.
Remove from oven and serve with mashed potatoes. Makes a great meatloaf sandwich with leftovers.